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Apr 25, 2026

City of Grapevine Trampoline Park & Pediatric Injury Attorneys Attorney911 of Houston TX Ralph Manginello 25 Years Defeating Urban Air Sky Zone Altitude & DEFY Waivers Lupe Peña Former Recreational Defense Attorney On Staff Who Knows Which Waivers Break Cosmic Jump $11.485M Harris County Verdict Damion Collins $15.6M Urban Air Arbitration Active $10000000 Rhabdomyolysis Case ASTM F2970 ASTM F381 AAP 2019 & EN ISO 23659:2022 Standards Mastery Pediatric TBI Cervical SCI Salter-Harris Growth Plate SCIWORA & Vertebral Artery Dissection Litigation Unleashed Brands Seidler Equity & Palladium Corporate Accountability Specialist Backyard Jumpking Skywalker & Springfree Manufacturer Defects Cerna v Pearland Urban Air & Delfingen Bilingual Waiver Defense Tex Fam Code 153.073 Signer Authority Defeat Hablamos Español Free Consultation No Fee Unless We Win 1-888-ATTY-911

"His feet hit the mat, and almost instantly his knees buckled down, and he just let out the worst scream that you could ever have heard from a child." That is how Kaitlin "Kati" Hill described the moment her three-year-old son Colton’s femur was shattered at a trampoline park. Her warning, shared a quarter of a million times on social media, echoed the same five words we hear from families in City of Grapevine every month: "We had no idea." At the Urban Air Adventure Park or the Altitude Trampoline Park near City of Grapevine, the courts look like a supervised, safe environment for a birthday party or a Saturday afternoon. But behind the neon lights is a system designed to maximize throughput and minimize legal accountability. We represent families in City of Grapevine who have lived the nightmare Kati Hill described. We know that when a child is launched by a 200-pound adult in a double-bounce or falls thirty feet from a climbing wall because a harness wasn't attached, it isn't an accident. It’s a business decision. We have spent over 25 years making corporate defendants pay for prioritizing margin over human life. Ralph Manginello brings federal court experience and a track record of multi-million dollar settlements in catastrophic injury cases. Our team includes Lupe Peña, an attorney who used to defend insurance companies and recreational facilities. He knows their playbook because he helped write it. He knows which waiver clauses are airtight and which ones are full of…

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Apr 25, 2026

City of Grand Prairie Trampoline Park Injury & Pediatric Accident Attorneys Attorney911 Ralph Manginello 25+ Years Defeating Sky Zone Urban Air DEFY Altitude & Launch Waivers Former Recreational-Business Defense Attorney Lupe Peña Cosmic Jump $11.485M Harris County Verdict & Damion Collins $15.6M Urban Air Arbitration Success ASTM F2970 ASTM F381 AAP & EN ISO 23659:2022 Standards Mastery Pediatric TBI Spinal Cord SCIWORA Salter-Harris Growth Plate & Rhabdomyolysis Experts Backyard Jumpking Skywalker Springfree & Walmart Bouncepro Manufacturer Liability Sky Rider Zipline Strangulation & Climbing Wall Harness Falls Unleashed Brands Seidler Equity & Palladium Corporate Accountability Delfingen Bilingual & Tex Fam Code 153.073 Signer-Authority Waiver Attacks Hablamos Español Free Consultation 1-888-ATTY-911 No Fee Unless We Win

One bounce. One bad landing. One broken neck. That is all it takes at a trampoline park in Grand Prairie. At the Big Air Trampoline Park or the nearby Urban Air and Altitude locations serving Grand Prairie families, a child can go from a Saturday afternoon birthday party to a pediatric trauma bay in less than three seconds. Their parents signed a waiver at a flickering kiosk twenty minutes earlier, usually under the pressure of a long line and excited kids. Now, as they sit in the waiting room at Children’s Medical Center Dallas or Cook Children’s in Fort Worth, they are told their child has a Salter-Harris growth plate fracture or, worse, a cervical spine injury that the ER staff is screening for SCIWORA—spinal cord injury without radiographic abnormality. When that happens, the park's management doesn't usually call 911. They hand you a clipboard. They tell you it was a "freak accident." They remind you that you "assumed the risk." They are wrong. At Attorney911, we have spent more than 25 years making corporate defendants pay for the "business decisions" they disguise as accidents. Our founder, Ralph Manginello, has taken on Fortune 500 giants like BP in the wake of the Texas City refinery explosion and is currently litigating a $10 million lawsuit against the University of Houston involving rhabdomyolysis—the same catastrophic muscle breakdown we see in children who jump to the point of exhaustion in overheated Texas jump centers. If your child was injured in Grand Prairie, you…

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Apr 25, 2026

City of Glenn Heights Trampoline Park Injury & Pediatric Catastrophic Accident Attorneys at Attorney911: Leading Litigation for Sky Zone, Urban Air, DEFY, and Altitude Cases with 25+ Years Experience and the Insider Advantage of Former Recreational-Business Defense Attorney Lupe Peña to Defeat Waivers; Masters of ASTM F2970-22, EN ISO 23659:2022, and AAP Pediatric Standards holding Seidler Equity and Palladium Equity Corporate Parents Accountable; Anchored by the Cosmic Jump $11.485M Harris County Verdict, Damion Collins $15.6M Urban Air Arbitration, and Active $10M University of Houston Rhabdomyolysis Case; Expert Handling of Pediatric TBI, SCIWORA, Salter-Harris growth plate fractures, and Backyard Trampoline Defects from Jumpking, Skywalker, and Springfree using Delfingen Bilingual-Defeat and Tex. Fam. Code § 153.073 Signer-Authority Attacks; Serving City of Glenn Heights with 24/7 Legal Emergency Support, Hablamos Español, Free Consultations, and No Fee Unless We Win at 1-888-ATTY-911

One bounce. One bad landing. One broken neck. That is all it takes for a Saturday afternoon in the City of Glenn Heights to turn into a lifetime of medical monitoring and trauma-bay recovery. Families across the City of Glenn Heights often visit the massive adventure parks that line the I-35E corridor, from the Urban Air in Waxahachie or Mansfield to the Altitude in Cedar Hill. You sign a waiver because the line is long and your children are excited. You hand over your credit card and receive a wristband. You believe that because the facility is open to the public, it has been inspected by the state or follows professional safety protocols. The truth is much darker. In Texas, there is no statewide law regulating trampoline park safety. There are no mandatory state inspections of trampoline decks, and there is no requirement for the park to report injuries to the government. At parks across the City of Glenn Heights and the DFW Metroplex, the person watching your child is often a 17-year-old making near-minimum wage with fewer than four hours of training. When your child is launched into the air by a "double-bounce" or sinks to the bottom of a compacted foam pit, the resulting injury isn't a "freak accident." It is the predictable output of a business model that prioritizes margin over minor safety. Attorney911 was built for exactly this fight. Ralph Manginello brings over 25 years of experience litigating against Fortune 500 giants like BP and Walmart.…

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Apr 25, 2026

City of Garland Trampoline Park Injury & Pediatric Catastrophic Accident Attorneys at Attorney911 of Houston TX Lead by Ralph Manginello with 25 Years Federal Court Experience and Former Recreational Defense Insider Lupe Peña Defeating Sky Zone Urban Air and Altitude Waivers via Gross Negligence and Tex Fam Code 153.073 Signer-Authority Attacks Drawing on Mastery of ASTM F2970-22 EN ISO 23659:2022 and AAP Policy Standards to Hold Billion-Dollar Corporate Parents Unleashed Brands and Palladium Equity Accountable for Double-Bounce Collisions Sky Rider Strangulations and Foam Pit TBI SCIWORA Vertebral Artery Dissections Salter-Harris Growth Plate Fractures and Pediatric Rhabdomyolysis Anchored by the Cosmic Jump 11.485M Verdict and Damion Collins 15.6M Urban Air Arbitration Precedent Representing Families Near Childrens Medical Center Dallas and Cook Childrens with Backyard Jumpking and Skywalker Manufacturer Defect Litigation No Fee Unless We Win Hablamos Español Free Consultation 24/7 at 1-888-ATTY-911

One second your child was jumping on a trampoline in the City of Garland. The next, their legs crumpled, and they let out a scream that no parent should ever have to hear. It’s a moment of pure terror that shifts from a Saturday afternoon birthday party to a life-changing medical emergency in the time it takes to land a single bounce. If you are reading this from a hospital bedside at Children’s Medical Center Dallas or while your child recovers in a body cast at your City of Garland home, we have one thing to say to you first: This is not your fault. For over 25 years, our managing partner Ralph Manginello has stood with families facing the aftermath of catastrophic injuries. We have seen how insurance companies use the paperwork you signed at a kiosk as a weapon to make you believe you have no rights. We are here to tell you that the legal "walls" these parks build are often made of paper, and we have spent two decades dismantling them. From our Texas offices in Houston, Austin, and Beaumont, we represent City of Garland families and victims nationwide who have been harmed by a system that puts quarterly profit margins ahead of child safety. Trampoline parks like the Urban Air Adventure Park on Lavon Drive or Jumping World on Saturn Road are part of a massive, multi-million dollar industry. Nationally, chains like Sky Zone, DEFY, and Altitude move thousands of jumpers through their facilities every…

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Apr 25, 2026

City of Ferris Trampoline Park Injury & Pediatric Catastrophic Accident Attorneys Attorney911 Ralph Manginello 25 Years Defeating Sky Zone and Urban Air Waivers with Former Defense Attorney Insider Advantage Cosmic Jump $11.485M Harris County Verdict and $15.6M Damion Collins Urban Air Arbitration Mastery for Pediatric TBI SCIWORA Salter-Harris Fractures and Rhabdomyolysis ASTM F2970 EN ISO 23659 and AAP Standards Expertise Holding DEFY Altitude Launch and Backyard Jumpking Skywalker Manufacturers Accountable Adjacent Attraction Sky Rider Strangulation and Climbing Wall Failure Recovery via DVR Forensic Imaging and FRE 404b Pattern Evidence Attacking Unleashed Brands and Palladium Equity Corporate Parents Hablamos Español Tex Fam Code 153.073 and Delfingen Bilingual Waiver Attack Vectors Free Consultation 1-888-ATTY-911 No Fee Unless We Win

"Sus pies tocaron la colchoneta y, casi al instante, sus rodillas se doblaron y soltó el peor grito que jamás se haya escuchado de un niño". Esa es Kaitlin "Kati" Hill, una madre cuyo hijo de tres años, Colton, sufrió una fractura de fémur y pasó semanas con un yeso de cuerpo completo tras una visita a un parque de trampolines. Como le dijo a ABC News: "No teníamos idea. Nunca habríamos puesto a nuestro bebé en un trampolín si lo hubiéramos sabido". En la Ciudad de Ferris, las familias se encuentran a un corto trayecto en auto por la I-45 del grupo más denso de parques de trampolines del país. A menos de treinta minutos de un vecindario tranquilo en la Ciudad de Ferris, sus hijos pueden estar dentro de un Urban Air en Waxahachie, un Altitude en Cedar Hill o un Sky Zone en Irving. Estas instalaciones se promocionan como centros de "diversión familiar segura", pero la realidad detrás de las luces brillantes y la música fuerte es un modelo de negocio que escala el riesgo a un nivel industrial. Somos Attorney911. Nuestro socio director, Ralph Manginello, ha pasado más de 25 años exigiendo responsabilidades a demandados corporativos en tribunales federales y estatales. No manejamos los casos de trampolines como un típico resbalón y caída. Los tratamos como las batallas de responsabilidad corporativa de alto riesgo que realmente son. Hemos litigado contra gigantes de Fortune 500 como BP, Walmart y Amazon. Las empresas matrices detrás de las cadenas…

39 min read Read Article

Apr 25, 2026

City of Farmers Branch Trampoline Park Injury Attorney Attorney911 of Houston TX: 25+ Years Defeating Corporate Parent Waivers for Sky Zone Urban Air DEFY Altitude and Launch with Former Recreational-Defense Insider Lupe Peña Using the Delfingen Bilingual Attack and Tex Fam Code 153.073 Signer-Authority Defeat Strategy; Ralph Manginello – Federal Court Admitted Pediatric Catastrophic Injury Mastery Targeting TBI SCIWORA Salter-Harris Growth-Plate and Rhabdomyolysis Claims Anchored by Cosmic Jump 11.485M Harris County Verdict and Damion Collins 15.6M Urban Air Arbitration; National Litigation Authority on ASTM F2970 ASTM F381 AAP and EN ISO 23659:2022 Safety Standards Overcoming Gross Negligence and Double-Bounce Force Violations; Elite Backyard Manufacturer Defect Claims Against Jumpking Skywalker Springfree and Bouncepro (Walmart) Plus Sky Rider Strangulation Patterns and Climbing Wall Harness Failures; Hablamos Español No Fee Unless We Win Free Consultation 24/7 1-888-ATTY-911

One bounce. One bad landing. One life changed forever. For families in City of Farmers Branch, a Saturday afternoon at a trampoline park is marketed as a high-velocity playground for birthday parties and "glow nights." But the reality inside facilities like Sky Zone Irving or Urban Air North Dallas is often far more dangerous than the bright lights and loud music suggest. At Attorney911, we call the sound that follows a trampoline accident in City of Farmers Branch "the worst scream you could ever hear from a child." That is how Kaitlin "Kati" Hill described the moment her three-year-old son’s femur snapped during a session marketed for toddlers. Colton spent months in a body cast because a bigger child landed on his trampoline bed. Kati’s warning was shared over 240,000 times because most parents in City of Farmers Branch have no idea that these facilities are built on a foundation of systemic negligence and calculated risk. We don't look at a child’s broken leg as a "freak accident." We see a business decision. When a park in City of Farmers Branch operates at half the required attendant ratio during a weekend rush to protect their profit margins, the injuries that follow are entirely predictable. Our founding partner, Ralph Manginello, has spent more than 25 years making corporate defendants pay for catastrophic injuries. We’ve fought Fortune 500 companies in cases like the BP Texas City refinery litigation, and we bring that same battle-tested experience to every trampoline park case we take.…

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Apr 25, 2026

City of Duncanville Trampoline Park & Pediatric Injury Attorney: Attorney911 of Houston, TX 25+ Years Defeating Sky Zone, Urban Air, DEFY & Altitude Waivers with Former Recreational-Defense Insider Lupe Peña, Federal Court Admitted Mastery of $11.485M Cosmic Jump Verdict & $15.6M Damion Collins Urban Air Arbitration, Pediatric Catastrophic Litigation Specialists Holding Palladium Equity & Seidler Equity Corporate Parents Accountable for TBI, Cervical SCIWORA, Salter-Harris Growth Plate Fractures & Rhabdomyolysis Life-Care Plans, Expertise in ASTM F2970, ASTM F381 & EN ISO 23659:2022 Standards for Backyard Jumpking, Skywalker, Springfree & Bouncepro Manufacturer Defects plus Sky Rider & Climbing Wall Accidents, Leveraging Texas Family Code Section 153.073 & Delfingen Bilingual Waiver Defeat Strategies, Hablamos Español, 1-888-ATTY-911 Free Consultation, No Fee Unless We Win!

"His feet hit the mat, and almost instantly his knees buckled down, and he just let out the worst scream that you could ever have heard from a child." That is Kaitlin "Kati" Hill, a mother whose three-year-old son, Colton, suffered a broken femur during a "Toddler Time" session at a trampoline park. Colton spent months in a body cast. Kati shared her story on social media, and more than 240,000 parents shared it with her, all repeating the same heartbreaking refrain: "We had no idea." If you’re reading this at 11 PM from a hospital waiting room at Children’s Medical Center Dallas or another Level 1 pediatric trauma center serving the City of Duncanville, you are now part of a group no parent ever wants to join. Your child was at a birthday party, an open-jump session, or simply playing in a neighbor’s backyard near the Wheatland Road corridor or along US-67. Then, in two seconds, everything changed. We’re here to tell you that what happened to your child wasn't a freak accident. It was the predictable result of an industry that, for decades, has put profit margins ahead of pediatric safety. At The Manginello Law Firm — Attorney911 — we don't just handle personal injury cases. We dismantle the systems that allowed your child to get hurt. Our Managing Partner, Ralph Manginello, brings over 25 years of courtroom experience, including federal court admission in the Southern District of Texas. He’s gone head-to-head with some of the largest corporations…

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Apr 25, 2026

City of DeSoto Trampoline Park & Pediatric Injury Attorneys Attorney911 of Houston TX Ralph Manginello 25+ Years Experience & Lupe Peña Former Recreational Defense Lawyer Who Knows How to Defeat Sky Zone and Urban Air Waivers; Catastrophic Pediatric TBI SCIWORA Salter-Harris Growth Plate & Rhabdomyolysis Litigation Experts for Sky Zone (Palladium Equity) Urban Air (Unleashed Brands/Seidler) Altitude Launch & DEFY; Mastering ASTM F2970 + EN ISO 23659:2022 + AAP Standards Anchored by Cosmic Jump $11.485M Harris County Verdict & Damion Collins $15.6M Urban Air Arbitration; Fighting Sky Rider Strangulations Climbing Wall Falls & Backyard Jumpking Skywalker Springfree Manufacturer Defects; Hablamos Español Applying Delfingen Bilingual Unconscionability & Texas Family Code 153.073 Signer Authority Defenses; Free Consultation 24/7 No Fee Unless We Win 1-888-ATTY-911

The Parent’s Guide to Trampoline Park Injuries in City of DeSoto, Texas "His feet hit the mat, and almost instantly his knees buckled down, and he just let out the worst scream that you could ever have heard from a child." That is Kaitlin "Kati" Hill, a mother whose warning post about a trampoline park injury to her three-year-old son, Colton, was shared more than 240,000 times. Colton didn't just fall; he suffered a broken femur that required him to be placed in a body cast for months. Like so many families in City of DeSoto, Kati ended her story with five words that haunt every parent at a hospital bedside: "We had no idea." At Attorney911, we have spent 25+ years representing families who had "no idea" how dangerous these facilities actually are. Our founder, Ralph Manginello, has built a career holding corporate giants accountable—from multinational oil companies in the BP Texas City refinery litigation to institutional defendants in our active $10 million lawsuit against the University of Houston involving rhabdomyolysis and acute kidney failure. If your child was injured at a trampoline park serving City of DeSoto, or if you were hurt on a defective backyard trampoline, you aren't just looking for a "personal injury lawyer." You are looking for a firm that has memorized ASTM F2970, that knows exactly which clauses in an Urban Air or Sky Zone waiver are void under Texas law, and that includes an attorney like Lupe Peña, who used to defend these…

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Apr 25, 2026

City of Coppell Trampoline Park Injury & Pediatric Catastrophic Accident Attorneys at Attorney911 of Houston TX: Our Firm Defeats Sky Zone Urban Air DEFY & Altitude Waivers Using Ralph Manginello’s 25 Years Trial Experience and Former Industry Defense Lawyer Lupe Peña’s Insider Advantage to Hold Corporate Owners Palladium Equity & Unleashed Brands Accountable for SCI TBI Salter-Harris and Rhabdomyolysis Injuries through ASTM F2970 EN ISO 23659:2022 Standards Mastery Citing Cosmic Jump $11.485M Harris County Verdict and Damion Collins $15.6M Urban Air Arbitration Benchmarks for Commercial Parks Backyard Jumpking Skywalker Springfree Defects and Sky Rider Strangulation Patterns with Tex Fam Code 153.073 Signer Authority Defeats Hablamos Español No Fee Unless We Win 1-888-ATTY-911

"His feet hit the mat, and almost instantly his knees buckled down, and he just let out the worst scream that you could ever have heard from a child." That was Kaitlin "Kati" Hill, telling ABC News what happened when her three-year-old son, Colton, broke his femur at a trampoline park during a "Toddler Time" session. Her warning to other parents was shared 240,000 times. We read it. We hear that scream in almost every initial phone call we take from families in the City of Coppell and across North Texas. What happened to Colton—and what may have happened to your child at an indoor jump center near the City of Coppell—was not an "accident." It was the predictable, mathematically certain output of a business model that prioritizes throughput and profit margin over pediatric safety. At Attorney911, we don't treat these as simple slip-and-falls. We treat them as corporate accountability cases. Whether your injury occurred at the Urban Air in Southlake, the Sky Zone in Irving, or on a backyard Jumpking in a City of Coppell neighborhood, you are now facing an insurance machine designed to silence you with a signature you gave at a kiosk. We are here to tell you that the waiver is not the wall they want you to believe it is. We are The Manginello Law Firm. Led by Ralph Manginello, who has spent over 25 years making corporate defendants pay for catastrophic injuries, and Lupe Peña, a former insurance defense attorney who used to…

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Apr 25, 2026

City of Combine Trampoline Park Injury Attorneys Attorney911 of Houston TX Ralph Manginello 25 Years Defeating Sky Zone Urban Air DEFY Altitude Waivers Former Recreational Business Defense Insider Advantage Lupe Peña Damion Collins 15.6M Urban Air Arbitration Cosmic Jump 11.485M Harris County Verdict ASTM F2970 ASTM F381 EN ISO 23659 2022 Standards Mastery Pediatric TBI Spinal Cord SCIWORA Salter-Harris Growth Plate Rhabdomyolysis Specialists Backyard Jumpking Skywalker Springfree Manufacturer Defects Sky Rider Ziplines Climbing Walls Foam Pits Tex Fam Code 153.073 Signer Authority Delfingen Bilingual Waiver Defeat Munoz Gross Negligence Experts Palladium Equity Seidler Unleashed Brands Corporate Parent Accountability BP Texas City Veteran Active 10M UH Rhabdomyolysis Case Pediatric Life-Care Plans 2M-25M CPSC NEISS Injury Tracking Hablamos Español Free Consultation No Fee Unless We Win 1-888-ATTY-911

In Harris County, Texas, a jury awarded $11.485 million—including $6 million in punitive damages—against the operator of Cosmic Jump after a 16-year-old fell through a torn trampoline slide onto concrete and suffered a traumatic brain injury. The waiver was signed. The jury found gross negligence anyway. That is the largest reported jury verdict against a U.S. commercial trampoline park, and it happened right here in our backyard. For families in Combine, this isn't just a headline. It is the legal reality that protects your child when a business puts profit over safety. One bounce. One bad landing. One broken neck. That is all it takes at a trampoline park. If you are reading this from a hospital bedside or your home in Combine, searching for answers while your child is in a body cast or facing surgery, our managing partner Ralph Manginello knows the weight you are carrying. Since 1998, Ralph Manginello has been fighting for injury victims. For over 25 years, our firm has stood against Fortune 500 companies and insurance giants. We’ve seen what trampoline parks do after a catastrophic injury, and we know how to stop them from hiding the evidence. The Reality of Trampoline Injuries in the Combine Metro Area Combine sits at the edge of the Dallas-Fort Worth suburban sprawl, which means families often drive north or west to reaching the dense cluster of trampoline parks like Sky Zone, Urban Air, or Altitude. Whether you were at the Urban Air off US-175 or a Sky…

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