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The Collins arbitration: how a signed waiver became a $15.6 million award.

This is the account of the Collins arbitration from the firm that tried it. It is the case other firms cite when they tell injured families that waivers can be beaten. We are the lawyers who actually beat one.

Matter
The Collins arbitration
Forum
Private arbitration, pursuant to the park's own participation agreement
Award
$15.6 million, entered September 14, 2023
Injury
Cervical spinal cord injury; quadriplegia
Attraction
The Wipeout
Trial counsel
Tim Kingsbury, Colin McClain and Ken McClain

In July 2021, Damion Collins went to a birthday party at a Kansas trampoline park. He was a young man with no history at the park; it was his first visit. Like every guest, he entered under the park's standard liability waiver, a document that also routed any dispute into private arbitration. Within hours, he was in an emergency room with a cervical spinal cord injury. He has been paralyzed from the chest down ever since.

What happened in between took place on an attraction called the Wipeout: a ring of triangular trampolines surrounding a set of rotating arms that sweep across the jumping surface. Guests are expected to time the arms, ducking under one and leaping over the other, while bouncing. Damion attempted a maneuver on the attraction, came down on his neck, and did not get up. The incident was captured on the park's own video.

The Wipeout trampoline attraction inside a netted enclosure, with rotating striped arms over pie-shaped trampoline beds and posted warning signs
The attractionThe Wipeout at the park where Damion was injured. A warning sign inside the enclosure states that impact can result in serious or fatal head injury, paralysis, and fracture.

What the evidence showed

The park's insurance adjuster came to us before we filed anything. He sent over the surveillance footage and the waiver. His message was blunt: Damion was breaking the rules. He signed a waiver. This case should never be filed and they would never pay a dime.

Most attorneys would have closed the file right there. We relied on our experience instead. We took the footage to experts. We researched the attraction on our own. The evidence told a different story and the arbitration gave us the chance to develop all of it.

The investigation established that the Wipeout was not an unknown quantity. The same attraction had already proven dangerous at another park before it was ever put into service at this one. The companies that built it, sold it, and operated it were in a position to know what it could do. The guests bouncing on it were not. No one instructed Damion on how to use the attraction. No one warned him of what had already happened elsewhere. The information that mattered most never made it past the corporate offices to the person standing on the trampoline.

The defendants never produced the Iowa incident reports. We found them on our own through independent research and a third party. One of them describes a child hurt on this same Wipeout in a manner nearly identical to what happened to Damion.

Top portion of the December 2019 Activity Hazard Analysis for the WipeOut trampoline with a color coded risk matrix defining catastrophic risk as loss of life or limb or paralysis
The hazard analysisFrom the Activity Hazard Analysis of the Wipeout performed after Iowa regulators shut the attraction down in 2019. Its own risk matrix defines catastrophic as loss of life or limb or paralysis. This file existed years before Damion was hurt.
Top portion of an Iowa Amusement Accident Report for the Wipeout describing a child who jumped to clear the highest arm and landed on the pad
An Iowa incident reportOne of the reports the defendants never produced. A child jumped to clear the highest arm and landed on the pad instead of the trampoline. Nearly identical to Damion's injury.

That gap between what the companies knew and what the patron was told became the center of the case.

From the Arbitration Award  |  September 14, 2023
"I conclude that there was a systemic failure to bring necessary information to the patron, and that given the recognized risk of serious injury, the failure to timely implement those changes resulted in the injuries to Mr. Collins."
Arbitrator's Award in the Collins arbitration

The waiver, and why it did not end the case

The waiver did what trampoline park waivers do: it recited the inherent risks of jumping and directed disputes into arbitration. But a guest can only assume a risk he is told about or could reasonably appreciate. The danger at the heart of this case was not the ordinary risk of bouncing on a trampoline. It was a specific, known hazard in a specific attraction, one the operators had reason to understand and the patron had no way to discover. A form signed at the front desk does not answer for that kind of silence.

Excerpt of the release section of the waiver from the case with the language releasing all liabilities highlighted
The actual waiverThe release section of the waiver from Damion's case. The highlighted language purports to release the protected parties from all liabilities even for their own negligence. It did not end the case.

So the case proceeded, in the very forum the park's own paperwork selected. Arbitration is a venue parks generally believe favors them: private, streamlined, and away from juries. We prepared the Collins matter the way we prepare a jury trial, with the incident video, the attraction's history, and the corporate record fully developed. The forum changed. The evidence did not. It helped that the forum was familiar: Humphrey, Farrington & McClain has handled more than 1,000 arbitrations since 2020, work that has produced more than $100 million in awards for clients.

Told your waiver ends your case? It did not end this one.

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Reaching past the front counter

Trampoline park chains are structured in layers: a local franchise entity operates the building, a national franchisor licenses the brand and writes the manuals, and affiliated companies design and sell the attractions. When someone is hurt, that structure works exactly as designed, with each layer pointing at another.

The Collins award cut through it. Responsibility was assigned across the corporate structure, with the largest share falling on the national franchisor rather than the local franchise. The entities that operated the park, the franchisor that governed it, and the company behind the attraction were each held accountable. For families and for referring attorneys, that allocation is the most important fact of the case after the number itself: the decisions that lead to these injuries are usually made well above the building where the injury happens, and the case has to be built to reach them.

The case, in sequence

July 2021

The injury

Damion Collins is paralyzed on the Wipeout attraction during a birthday party at the trampoline park. The incident is captured on video.

2021 to 2023

The investigation and arbitration

The claim proceeds in private arbitration under the park's participation agreement. The record is developed against the operating entities, the national franchisor, and the company behind the attraction, including the Wipeout's history before its installation at the park.

September 14, 2023

The award

The arbitrator finds a systemic failure to bring necessary information to the patron and enters an award of $15.6 million. The largest share of responsibility is assigned to the national franchisor. Missouri Lawyers Media covered the award.

Results that actually matter

Because of this result, Damion and his family were able to move to a home built for his life: fully accessible, with a wheelchair-accessible van in the driveway, on its own land, overlooking a small pond. He could get outside again. The award did not give him back what was taken at that park, but it gave him back a measure of the world.

Damion was an amazing client and it was an honor to represent him.

What Collins means if this happened to your family

1

A signed waiver is the beginning of the analysis, not the end

The Collins waiver was real, signed, and standard. It did not bar recovery, because the case turned on a hidden, known danger rather than the ordinary risks of jumping. If a park or its insurer has told you the waiver ends the matter, that statement deserves scrutiny, not acceptance.

2

Arbitration clauses do not make claims disappear

Collins was won in arbitration, the forum the park's own paperwork chose. A serious injury claim, fully investigated and fully prepared, can succeed there.

3

The attraction's history matters

The decisive evidence in Collins was what the companies knew about the Wipeout before the injury. Prior incidents, corporate communications, and manufacturer records rarely surface without a firm that knows to demand them and how to use them.

4

Move before the evidence does

The Collins incident was on video because the claim was pursued while the video still existed. Some parks retain surveillance footage for only a matter of weeks. Preservation demands should go out immediately, and they have to name the right things: the video, the inspection and maintenance logs, the staffing and training records, and the attraction's incident history. We know what to demand because we have demanded it before.

If you or a family member was seriously injured at a trampoline park

We accept a small number of serious trampoline park injury cases each year, and each one gets the investigation Collins received. The consultation is free, confidential, and with a lawyer.

Request a Free Case Review

For referring and co-counsel attorneys

Trampoline park cases come to us from other trial lawyers for a simple reason: most firms do not want them. Collins is one of multiple trampoline park matters we have handled in states across the country, and the firm has collected millions of dollars for clients injured at these parks. If you have a client with a serious trampoline park injury, call Tim Kingsbury at (816) 836-5050.

(816) 836-5050

Past results afford no guarantee of future results. Every case is different and must be judged on its own merits.

Published by
Tim Kingsbury, trial attorney at Humphrey, Farrington & McClain
Tim Kingsbury Trial Attorney, Humphrey, Farrington & McClain, P.C.

Tim Kingsbury is a trial attorney at Humphrey, Farrington & McClain whose practice focuses on serious injury litigation against trampoline and adventure parks. He represents injured people directly and works with referring counsel on trampoline park cases in states across the country.

Page published September 1, 2026. Last updated September 4, 2026.

More From This Practice

Sources

  1. Arbitrator's Award in the Collins arbitration (September 14, 2023).
  2. Missouri Lawyers Media, Man paralyzed at Kansas trampoline park wins more than $15M in arbitration (December 19, 2023).
  3. Additional background on trampoline park safety and regulation: see the sources listed on our trampoline park injury page.
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