"Knock, Knock..."

Me: Who's there?
E: Banana!
Me: Banana who?
E: Knock, Knock!
Me: Who's there?
E: Banana!
Me: Banana who?
E: Knock, knock!
Me: Who's there?
E: Banana!
[I grit my teeth so I don't say, "Say ORANGE! Say, 'Orange ya glad I didn't say banana?'"]
Me: Banana who?
E: Knock, knock!
Me: Who's there?
E: BANANA!
Me: Banana WHO?
E: BANANA! Now are you going to let me in your HOUSE?