Because they're paid to.
Beekeepers. Because beauty is in the eye of the beeholder.
Deleted
Because it was on the house.
A pittance.
It ova slept.
They both only work with a chain on.
Because he screwed up the delivery...
Because they crack themselves up!
Doctor, Doctor why are some jokes so painfully funny -It must be the punchline
They both say the same jokes over and over again.