Did you hear about the guy that created the KNOCK KNOCK JOKE?
He won the NO-BELL prize.
Knock, knock.
Who's there?
Duane
Duane who?
Duane the bathtub, I'm drowning!
Knock Knock
Who's there?
Control Freak. Now you say, 'Control Freak who?'
Knock, Knock!
Who's there?
Doctor
Doctor Who?
EXTERMINATE! EXTERMINATE!