In the car
John: Mom! MOM!
Me: What, what?
John: What did the banana say to the elephant?
Me: Uh...don't eat me?
John: No! NOTHING! BANANAS CAN'T TALK!
Me; Hey, that's pretty good!
John: I know! Maia! What did the banana say to the elephant?
John: NOTHING! BANANAS CAN'T TALK!
Maia: [shrieks with laughter]
Calm is restored. 15 minutes later...
Me: What's that?
Maia: Why can't bananas talk?
Me: Tell me.
Maia: Bikaz bananas can't talk!
The two scream with mirth.
Maia: Mama! Why do bananas say nothin'?
Me: Hmm...I think I know this one...
Maia: BIKAZ! THEY CAN'T!