“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 Hill described the sound of her three-year-old son’s femur snapping at a trampoline park.
If you are reading this in a hospital room at Children’s Medical Center Dallas or waiting for an orthopedic consult in Rockwall County, you know that sound. You know the silence that follows it. And as we have seen for families across Mobile City and North Texas, you are likely now facing a mountain of paperwork from a park manager who seems more interested in your signature than your child’s recovery.
We are Attorney911. For over 25 years, Ralph Manginello has stood in the gap for families facing the aftermath of catastrophic injuries. We are not a volume personal injury firm that treats your case like a file number. We are a trial-ready team led by a managing partner with federal court admission in the Southern District of Texas and an associate attorney, Lupe Peña, who used to draft and defend the manual-language and waivers that trampoline parks like Sky Zone, Urban Air, and Altitude rely on today. We know their playbook because we helped write it—now, we use that insider knowledge to dismantle it.
In Mobile City, families often head down I-30 to the Urban Air in Rockwall or over to the attractions in Garland and Mesquite. These facilities are advertised as “safe family fun,” but the physics of a trampoline court do not care about marketing. When your child is launched by a double-bounce or lands in a compacted foam pit, the resulting injury is not a “freak accident.” It is the predictable output of a business model that prioritizes throughput and profit over the safety standards the industry wrote for itself.
If your life changed in a single jump in Mobile City, you need to know that the waiver you signed at a kiosk is not the absolute shield the park wants you to believe it is. Texas law, the American Academy of Pediatrics (AAP), and the ASTM F2970 standards provide clear pathways for accountability. We are here to walk those paths with you.
Why Your Mobile City Trampoline Injury Case is Decided in the First 72 Hours
The moment an injury occurs at a park serving Mobile City, the operator’s risk management team is already at work. Before the EMS unit even leaves the parking lot on I-30, the facility is beginning a process intended to protect their bottom line, not your family.
We have handled cases against Fortune 500 corporations like BP, Walmart, and Amazon. We know how corporate defendants behave. In the trampoline industry—dominated by private-equity-backed conglomerates like Sky Zone, Inc. (formerly CircusTrix and backed by Palladium Equity Partners) and Unleashed Brands (the Seidler Equity-backed parent of Urban Air)—evidence has a way of vanishing.
Digital video recorders (DVRs) in commercial parks typically operate on a 7-to-30-day overwrite cycle. If we do not send a formal spoliation letter within days of your call, the footage of your child’s accident in a Rockwall County park may be gone forever. Incident reports, which often contain damaging admissions by staff in the first draft, are routinely “revised” on park computer systems. Waiver databases can be purged or updated to retrofit “conspicuousness” that wasn’t there when you signed.
Our firm doesn’t wait. When you retain us, our spoliation demand goes out within 24 hours. We demand the preservation of not just the video, but the metadata of the incident report, the shift logs of every teenage “court monitor” on duty, and the maintenance records of the specific attraction that failed your child. In Mobile City, where the legal system respects thorough preparation, this immediate action is what sets the stage for a multi-million dollar recovery.
The Reality of Commercial Trampoline Parks in North Texas
Most families in Mobile City assume that the state of Texas or the federal government inspects trampoline parks the way they might inspect a restaurant or a construction site. The truth is far more dangerous.
The Texas Regulatory Vacuum
As we often explain to our clients, Texas is one of many states with almost no meaningful regulation of indoor trampoline parks. Under the Texas Occupations Code Chapter 2151, the Texas Department of Insurance (TDI) regulates “Class B” inflatable amusement rides—things like bungee trampolines, indoor coasters (like the Sky Rider), and inflatable obstacle courses. These require an annual sticker, $1 million in insurance, and a filed inspection.
However, the main trampoline decks themselves are statutorily excluded under Section 2151.002. This means that at a facility near Mobile City, the zipline might be inspected by the state, but the trampoline court where your child broke their leg is subject only to the voluntary standards the industry wrote for itself: ASTM F2970.
ASTM F2970: The Industry’s Own Safety Floor
ASTM F2970 was drafted by leaders in the trampoline park industry to establish minimum safety requirements. When a park serving Mobile City violates these provisions—such as failing to separate jumpers by age and weight or neglecting to maintain foam pit depth—they are violating their own peers’ standards.
We pair every ASTM reference with the international standard, EN ISO 23659:2022. While the United States relies on voluntary industry standards, Europe and other developed economies mandate safety. We argue that any deviation from these international norms is evidence of a conscious disregard for safety, especially when the results are as catastrophic as a cervical spine injury or a permanent growth plate fracture.
The Mechanisms of Injury: Why Mobile City Families Get Hurt
Trampoline injuries are not random. They are the result of specific physical forces and operational failures.
The Lethal Physics of the Double-Bounce
If you were at a Saturday afternoon birthday party near Mobile City, you likely saw courts packed with kids of all sizes. This is a direct violation of safety logic. When a 200-pound adult lands on a trampoline bed at the same time a 60-pound child is pushing off, the kinetic energy transfer can multiply the child’s launch force by 4x.
The child isn’t jumping anymore; they have become a projectile. The Nysted and Drogset 2006 study, frequently cited by the AAP, found that the smaller jumper is roughly 14 times more likely to be injured in these scenarios. ASTM F2970 requires parks to operationalize weight and age separation. When they don’t, they are choosing margin over your child’s safety.
The Foam Pit Myth: Soft Landing, Hard Consequences
Foam pits look like a safe harbor. They are often the most dangerous attraction in the building. As documented in the 2012 death of Ty Thomasson at SkyPark Phoenix (which led to the passage of “Ty’s Law”), shallow or compacted foam pits offer no protection for head-first or feet-first landings.
If a foso de espuma (foam pit) in a North Texas park isn’t deep enough, a jumper will strike the concrete subfloor. The results are devastating:
- Cervical Spine Trauma: Axial loading on the head causes fractures and spinal cord compression.
- SCIWORA: Spinal Cord Injury Without Radiographic Abnormality. This is a pediatric-specific horror where the child’s flexible spine allows the cord to be damaged even while X-rays look normal.
- Infection Hazards: As we detail in our specialized vertical on foam pit sanitation, these blocks absorb sweat, saliva, and blood. They are breeding grounds for MRSA and Staph.
The Multi-Attraction Pivot
Parks like Urban Air and Altitude have pivoted from being “jump parks” to “family entertainment centers.” They now bolt on go-karts, climbing walls, and ropes courses. We are currently tracking cases like the 2019 Matthew Lu fatality at an Altitude park, where a harness failure led to a 20-foot fall onto concrete. The park publicly admitted “human error” and removed the attraction—a structural admission of guilt we use as evidence in similar cases.
Texas Law and Your Rights: The Waiver is Not a Wall
The first thing the insurance adjuster will say to a Mobile City parent is: “You signed a waiver.” They want you to believe your case ended at the kiosk. Under Texas law, that is a lie.
The Munoz v. II Jaz Doctrine
In Texas, a parent generally cannot sign away a minor child’s personal injury cause of action. The landmark case Munoz v. II Jaz (1993) established that public policy protects children, even from the well-meaning but uninformed signatures of their parents. While recent rulings like Cerna v. Pearland Urban Air (2025) and Beaumont v. Geter (2024) have favored the enforcement of arbitration clauses, they do not extinguish the underlying claim of a child whose body was broken by park negligence.
Attacking the Waiver on “Fair Notice”
Texas follows the Dresser v. Page Petroleum doctrine. A waiver must satisfy the “express negligence” rule and the “conspicuousness” standard.
- Express Negligence: The document must specifically use the word “negligence.”
- Conspicuousness: The text must be bolded, capitalized, or set apart in a way that a reasonable person in Mobile City would notice it.
Kiosk waivers, often clicked through in seconds under the pressure of a birthday party line, frequently fail these tests.
Gross Negligence: The Verdict Multiplier
No waiver in Texas can release a defendant from gross negligence. As proven by the $11.485 million Cosmic Jump verdict in Harris County, when a park has subjective awareness of a risk (like a torn trampoline mat) and proceeds with “conscious indifference,” the waiver is worthless. That verdict included $6 million in punitive damages intended to punish the corporate operator. We built our firm to pursue exactly this kind of accountability.
Pediatric Injuries: The Medicine Families Need to Understand
When a doctor at Texas Children’s or a local Rockwall specialist tells you your child has a “broken bone,” they may be understating the lifecycle of the injury.
Salter-Harris Growth Plate Fractures
Children’s bones are not just smaller versions of adult bones. They have physes—growth plates made of cartilage. A trampoline impact often causes a Salter-Harris Type II or III fracture. Because this damage happens at the site of future growth, your child may not show the full extent of the injury for years. At age 13 or 14, a leg-length discrepancy or angular deformity may manifest that requires corrective osteotomy or epiphysiodesis.
We work with pediatric orthopedic experts and life-care planners to ensure that your Mobile City settlement covers not just this year’s bills, but the next decade of potential surgeries.
Rhabdomyolysis and the “Long Jump”
One of our firm’s current high-profile matters is a $10 million lawsuit against the University of Houston involving rhabdomyolysis—the catastrophic breakdown of muscle tissue that releases toxic myoglobin into the bloodstream.
We see the same pathology in children who jump for 90 to 120 minutes straight in a hot North Texas park with inadequate hydration. If your child has dark, cola-colored urine, extreme muscle pain, or confusion 24 hours after a jump session, go to the ER now. Rhabdo can lead to acute kidney failure and permanent organ damage. Because of our active litigation in this medical niche, we have the expert network and the “rhabdo bridge” protocol ready to deploy for Mobile City families.
Liability: Finding the Deep Pockets
The local “Mom and Pop” LLC operating the franchise on the edge of Rockwall County probably doesn’t have the assets to pay for a lifetime of ventilator care or specialized neurological rehab. We look upstream.
The 5-Layer Defendant Stack in a typical trampoline case includes:
- Operator LLC: The local business.
- Franchisee: The multi-unit owner.
- Franchisor: UATP Management (Urban Air), Sky Zone Franchising, or Altitude Franchise Holdings. These entities dictate the safety manuals that were violated.
- Corporate Parent: Palladium Equity Partners or Seidler Equity Partners.
- Manufacturer: The company that designed the defective mat, harness, or go-kart (like Ropes Courses, Inc. or UA Attractions, LLC).
In the Collins v. Urban Air $15.6M arbitration award, the franchisor was held responsible for 40% of the fault because of “systemic failure” to implement safety changes. We use that same architecture to pierce corporate shields.
Why Choose the Manginello Law Firm for Your Mobile City Case?
Most personal injury lawyers are “slip-and-fall” generalists. They don’t know the difference between an ASTM F381 home standard and an ASTM F2970 commercial standard. They don’t have an attorney like Lupe Peña who can dismantle a defense argument because he literally used to make them.
Our Structural Edge:
- Waiver-Defeat Mastery: We analyze the formation logic (including bilingual-formation issues under the Delfingen doctrine) and the scope of the language.
- Expert Network: We advance the costs for biomechanical engineers who can model energy transfer and pediatric specialists who can project 30-year medical needs.
- Federal Court Experience: Ralph Manginello has gone head-to-head with the largest corporations in the world, including BP after the Texas City refinery explosion. The PE sponsors behind Sky Zone and Urban Air don’t intimidate us.
- No Fee Unless We Win: We operate on a contingency basis. You pay nothing upfront, and we advance every investigative expense.
As client Chad Harris famously said, “You are NOT just some client… You are FAMILY to them.” That is how we treat every Mobile City mother and father sitting in a hospital waiting room.
Frequently Asked Questions for Mobile City Parents
Can I sue if I signed the electronic waiver at the park?
Yes. In Texas, parent-signed waivers are frequently held void as to the minor child’s own claims (Munoz). Furthermore, no waiver can release a park from gross negligence or reckless conduct. If the park violated industry safety standards, the waiver is often a speed bump, not a wall.
The park manager said the injury was our child’s fault. Is that true?
In nearly every state, and especially in Texas, a child under age 7 is conclusively presumed incapable of negligence. Children age 7-14 are rebuttably presumed incapable. The duty of care belongs to the operator to provide a safe environment for children, not to the child to navigate a dangerous business.
How much is my child’s trampoline park case worth?
Valuation serves three levels: the medical bills, the future care (life-care planning), and non-economic damages (pain, suffering, and impairment). National results for catastrophic injuries range from $1.5 million for traumatic brain injuries to $15 million+ for spinal cord injuries. The $11.485 million Cosmic Jump verdict in Houston is our local yardstick for what a Texas jury thinks about park negligence.
Why won’t the park show me the video?
They are waiting for it to overwrite. Surveillance is the park’s biggest vulnerability. They will claim “technical issues” or “camera angles” until a lawyer sends a spoliation letter that threatens them with an adverse inference instruction.
My child’s injury happened at a birthday party. Who do we sue?
We sue the operator, the franchisor, and often the manufacturer of the equipment. If another parent signed for your child, that signature is likely a legal nullity.
What is a “trampoline fracture”?
It is a specific pediatric injury—a proximal tibial metaphyseal buckle fracture—usually seen in children under 6. The AAP recommends children under 6 avoid trampolines entirely. If a park in Rockwall County marketed to your 4-year-old and they suffered this injury, it is prima facie evidence of a standard-of-care violation.
Do you speak Spanish?
Sí. Lupe Peña es nuestra abogada asociada y habla español de forma nativa. Ella representa a nuestras familias hispanas directamente, asegurando que nada se pierda en la traducción cuando nos enfrentamos a las grandes corporaciones.
How do I pay for a lawyer?
You don’t. We work on a contingency fee. Our firm’s success is tied to yours. We take home a percentage of the recovery only if we win. We advance the thousands of dollars needed for independent engineering inspections and medical experts so your family can focus on healing.
What to Do in the Next 24 Hours in Mobile City
- Seek Specialized Care: If the local ER missed something, get a second opinion from a Level 1 pediatric trauma specialist.
- Preserve the Mat and Socks: Save the grip-socks and any clothing your child was wearing. They can contain evidence of mechanical failure or sanitation issues.
- Silence is Safety: Do not post about the injury on Facebook or Instagram. Do not talk to the park’s insurance adjuster.
- Preserve the Evidence: Call us at 1-888-ATTY-911.
The park has a risk management team working on this case right now. Mobile City families deserve the same level of aggressive, expert protection.
What happened to your child at the trampoline park wasn’t an accident—it was the predictable output of a systemic failure. The AAP has been warning about these hazards since 1999. ASTM F2970 was written by the industry themselves to establish a safety floor, yet they choose to operate below it to hit margin targets. The surveillance is engineered to overwrite before most families can find an attorney.
Attorney911 was built for exactly this fight. Ralph Manginello brings 25+ years of catastrophic injury experience. Lupe Peña knows the defense script because he used to write it. We currently litigate $10 million cases against major institutions, and we bring that same trial-ready intensity to every Mobile City trampoline claim.
Your child’s future recovery is decided by what gets preserved this week. Call 1-888-ATTY-911. Hablamos Español. No fee unless we win. Our spoliation letter goes out within 24 hours of your retention. Let us start the fight for you today.
