Knock-knock
Who's there?
Arthur
Arthur who?

Knock-knock
Who's there?
Cargo
Cargo who?

Knock-knock
Who's there?
Thatcher
Thatcher who?

Knock-knock
Who's there?
I'm Justin
Justin who?

 

Knock-knock
Who's there?
Beef
Beef who?

 

Knock-knock
Who's there?
Shirley
Shirley who?