What if You Are Already Seated?
It is commonplace to get to a busy restaurant and for there to be a sign there that asks you, very politely to wait to be seated. This sign is generally there to maintain an orderly fashion when a long line of people come to the restaurant.

But when this guy showed up, already seated in a wheelchair, he decided to poke some fun at the sign. Obviously, these signs are meant to make anybody feel bad about being differently-abled, but when something like this happens, you just have to laugh.