I used to work at Walt Disney World. My wife worked at the Jungle Cruise and had a man come on her tour boat (let's call him Matt) who was a quadruple amputee. He was independent and managed to wiggle onto the boat by himself.
10 minutes later it was time for Matt to get off the ride. It was a hot Florida day and the dock had those long metal strips of grippy stuff so people don't slip on the wood if the dock gets wet. Unfortunately it wasn't wet but it was 95 degrees outside. So when Matt wiggled off the boat the metal grippy stuff was 300 degrees and thousands of tourists saw a torso rolling around the dock screaming IT'S BURNING ME! IT'S BURNING ME!
They built a boat that accommodates wheel chairs shortly after that. [source]