Mom: Andy, where are you off to now? Son: I’m gonna join the army. Mom: But, legally you are only an infant. Son: That’s all right, I’m going to join the infantry.
A brain walks into a bar and says, I’ll have a pint of beer please. The barman looks at him and says, Sorry, I can’t serve you. Why not?, asks the brain. The barman retorts, Because you’re already out of your head.