From my 4 year old daughter:
Her: Knock knock
Me: Who’s there?
Her: Banana
Me: Banana who?
Her: Knock knock
Me: Who’s there?
Her: Banana
Me: Banana who?
Her: Knock knock
Me: Who’s there?
Her: Orange
Me: Orange who?
Her: Orange you glad I didn’t say Banana?
[laughter]
My favorite knock-knock joke.
http://ffffound.com/image/2c2f96ef57a5df41dc1ce20dbe2af5caeb07202d?c=1605301