Sir. Groan worthy penguin jokes(https://allwrong.wordpress.com/2007/10/05/penguin-riddles/)
Because she was a-Kraid to. Now I think about it, this joke is a bit more "Riddle-y," than say an actual joke.
Stumped
They always get cold feet! I'll show myself out.
Because they can't get the wrapper off.
Where to sir?
Sir.
Sir
A *cow*culater. I made it up myself, so don't groan at the pun.