Want to hear a joke? Knock Knock.
Who's there?
You know, that's enough, this isn't the appropriate forum.
Who's there? 
Boo. 
Boo who?
Never mind, don't cry!
Who's there?
You know, that's enough, this isn't the appropriate forum.
Who's there? 
Boo. 
Boo who?
Never mind, don't cry!