.... orange you glad I didn't say banana?

Knock knock...
Who's there?
Banana!
Banana who?

Knock knock!
Who's there?
Banana!
Banana who?


Knock knock!
Who's there?
Banana!
Banana who?


Knock knock!
Who's there?
Banana!
*sigh* Banana who?


Knock knock!
Who's there?
Banana!
Banana who?

If you know the joke, you know that on round 3 or 4 it should switch to "orange."  Charlotte still doesn't quite get knock knock jokes, but she thinks this one is hilarious.  The problem is, it's not the punchline that she thinks is funny, its the repetitive banana that gets her giggling.  I tried to explain it and then she came up with this one on her own.

Knock knock...
Who's there?
Pear!
Pear who?
Pear and banana!