He wasn't in the mooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooood.
A bull smiles when you milk it.
Leave it in the cow.
Barns and no-bulls. (This joke was made up by my 7 year-old cousin.)
Because Jesus was born in a barn.