Knock Knock

Our friend Morgan just posted some knock knock jokes created by her 5-year-old brother, which prompted me to recall this recent exchange, reproduced here for your amusement.

Child: Knock Knock
Me: Who's there?
Child: Aren't you glad I didn't say banana?
Me: Ummm....I think that part's supposed to come later.
Child: Oh yeah. Knock knock.
Me: Who's there?
Child: Banana.
Me: Banana who?
Child: Knock knock.
Me: Who's there?
Child: Banana.
Me: Banana who?
Child: Knock Knock
Me: Who's there?
Child: Banana.
Me: Really? Banana still?
Child: Yeah.
Me: OK. Banana who?
Child: Aren't you glad I didn't say banana?
Me: Ummm. You did say banana.
Child: Daddy! c'mon!