Because it was found on the ground.
Because he's always standing by The Edge.
OC Icy dead people!
Nobody asks, 'who's there ' when you try and tell a knock knock joke.
Trying to steal the hubcaps off a moving car.
One, but you can be sure a whole Reddit community will appear to expand the joke, make it funnier and eventually run it into the ground.
Because they were under-ground.