Me: Knock, knock.
Teacher: Who is there?
Me: Boo.
Teacher: Boo who?
Me: Stop being a crybaby and open the door!
Teacher: ......
Me: Aw man, detention again.
Me: Knock, knock.
Teacher: Who is there?
Me: Boo.
Teacher: Boo who?
Me: Stop being a crybaby and open the door!
Teacher: ......
Me: Aw man, detention again.
Okay, listen up, genius. This is a knock-knock joke, right? The dude says "Boo," and the teacher is supposed to say "Boo who?" Then the dude says something that rhymes with "Boo who?" but instead, the dude calls the teacher a crybaby because the teacher isn't playing along. The teacher gives him detention because jokes are for nerds.