There's none. They both knock on the door, but never goes in!
He was trying to hold the door
Knock on the door
I don't know.
Because they're both cauldron
Cause she doesn't have arms. Knock, Knock, Whose there Not Sally...
Because she had no arms. Knock, knock! (Who's there ) Well, it ain't Mary.
A Jehovah's Witness.
Nobody asks, 'who's there ' when you try and tell a knock knock joke.
Someone who pointlessly knocks on the door.
Both ride bicycles and are on a mission.
Test tickles
