That's Not Punny

The boys have learned a knock-knock joke. Not how to tell knock-knock jokes in general, mind you, but just one.

Knock, knock!
Who's there?
Boo.
Boo who?
Don't cry it's only a joke!

But that doesn't stop them from trying their own interpretations of this classic groaner. So fifty times a day Brennan, Tanner, or Eli will ask, "Knock, Knock!"

*sigh* "Who's there?"

[pause] The longer the pause the more painfully nonsensical the joke will be.

"Head!" *snicker, snicker*

*eye roll* "Head, who?"

[pause]

"A big monkey… is going to smash your head… with a banana… and throw you in the sky… and shoot you with a bazooka, and…"

"…Uh, okay, son." Elijah, in particular, seems fixated on the idea of someone getting smashed in all of his jokes. We're not sure why. We're watching him closely.