The next day he goes back to school.

Teacher"do you know your ABC's"?

kid:"oh shut up"!

Teacher: WHO DO YOU THINK YOU ARE?

Kid: da na da na da na BATMAN!

teacher: Do you want to go to the principals office?!

Kid: uh ha uh ha uh ha ha ha ha ha!

Teacher: where have your manners gone?!

Kid: Down the potty, Down the potty!