Knock Knock! Who's There? Abbott. Abbott who? Abbott time you answered the door!

Knock knock. Who's there? He. He who? He who must not be named, so don't say it!

Knock Knock! Who's There? Dot. Dot who? Dots for me to know, and you to find out.

Knock Knock! Who's There? Radio. Radio Who? Radio not, here I come!

Knock knock. Who's there? Haf. Haf who. Haf you ever opened the door because I'm tired of waiting.

Knock knock. Who's there? Doughnut. Doughnut who? I doughnut want to know if you're sick!

Knock, knock. Who's there? Esther. Esther who? The Esther Bunny. Knock, knock. Who's there? Stella. Stella who? Stella nother Esther Bunny. Knock, knock. Who's there? Samoa. Samoa who? Samoa Esther Bunnies. Knock, knock. Who's there? Consumption. Consumption who? Consumption be done about all these Esther Bunnies? Knock, knock. Who's there? Esther. Esther who? Esther anyone else as sick of this joke as I am?

Knock knock! Who's there? Ya. Ya who? What are you getting so excited about?

Knock knock Who's there? Idunnap. Idunnap who? Well, you best get to the toilet then! (For those of you who don't understand you're meant to say, "i done a poo!")

Knock Knock Who's there? Nunya! Nunya who? Nunya Damn Business!!

Knock-Knock Who's There Hatch Hatch Who? God Bless You.

Knock Knock Who's there? Aesop Aesop who? Aesop I saw a Putty Cat, I did I did!