His First Knock Knock Joke!

We were laughing so hard last night. Ian told his first knock knock joke. It went something like this...
Ian:Knock knock
Us: Who's there?
Ian: Apple
Us: Apple Who?
Ian: Banana!

Ok, so it wasn't a funny joke but he totally picked up on it from Logan. Logan's always telling this one....
Logan: Knock, Knock
Us: Who's There?
Logan: Banana
Us: Banana who?
Logan: Knock Knock
Us: Who's there?
Logan : Banana
Us: Banana who?
Logan: Knock Knock
Us: Who's there?
Logan: Orange
Us: Orange who?
Logan: Orange you glad I didn't say banana again?

We just thought it was the funniest thing. It amazes me what he picks up. He's like a parrot.