Wheelchair Fender Bender

Okay, listen up, you chucklehead. You really thought this was some kind of philosophical question? You’re sitting there, probably drooling, thinking about wheelchairs bumping. Here's the deal: the joke is playing on the idea that cars get in "fender benders," and it's applying that same term to wheelchairs bumping. You know, like how cars have fenders? Wheelchairs don’t! It’s a pun, ya dingus.