Knock! Knock!
Who’s there?
A broken pencil.
A broken pencil who?
Never mind, this joke is pointless.
Knock! Knock!
Who’s there?
Cash.
Cash who?
No thanks, I prefer peanuts.
Knock, Knock! {It's very hard & loud}
Who is it?
Op!
Who the heck is Op? Sorry, but I don't know of anyone by that name now go away!
Hey! It's Opportunity, and I only knock but once you fool!
Knock-knock..
Who's there?
Cargo.
Cargo who?
Car go beep beep!