Because dinosaurs went extinct 65 million years ago.
If you don't pull out in time, it will cost you a lot of money. My boss said he made this up on the spot yesterday. Never heard it before so I figured I'd post it.
They say the business is toast.
Because it might Pikachu.
In the bat-room (bathroom).
A pterrorist
Dinomite!!!!! *budum tssst*
Because pterodactyls are extinct.
Because the 'p' is silent.