A young boy returns home from school and say to his father.

A young boy returns home from school and says to his father "Dad, our maths teacher is asking to see you."

"What happened?" The father asks.

"Well, she asked me, 'how much is 7 * 9?' I answered '63' , then she asked, 'and 9 * 7?' So I asked 'what's the fucking difference?'

"Indeed, what is the difference?" asks the father. ''Sure, I'll go.''

The next day, the boy comes home from school and says, "Dad, have you gone by the school?"

"Not yet."

"Well when you do, come and see the gym teacher also."

"Why?" asks the father.

"Well we had a gym class today, and he asked me to raise my left arm, I did. Then my right arm, I also raised it. Then he asked me to lift my right leg, so I did. 'Now,' he says, 'lift your left leg,' so I asked, 'What, am I suppose to stand on.... my cock??'"

"Exactly," says the father. "Alright, I'll come."

The next day, the boy asks his father "Did you go to the school?" "No, not yet."

"Don't bother, I got expelled."

Surprised, the father asks "Why did you get expelled?"

"Well, they summoned me to the principal's office, and sitting there were the math teacher, the gym teacher, and the art teacher."

"The fuck was the art teacher doing there!?" asks the father.

"That's what I said!"