A boy comes home from school

A boy comes home from school:

Kid: Dad, math teacher wants to see you.

Dad: Why, what happened?

Kid: Today at class he asked me "What is 9x7?", I said 63. Then he asked me "What is 7x9?", I said "What the fuck is the difference?".

Dad thinks fair enough, says he will drop by. Next day, boy comes home, asks his dad:

Kid: Dad did you come to school?

Dad: Not yet.

Kid: Well, now my gym teacher wants to see you too.

Dad: Why, what happenned?

Kid: Today at gym class, he asked me to raise my right hand, i did. Then he asked me to raise my left hand, i did. Then he asked me to raise my right leg, i did. Then he asked me to raise my left leg, i asked, "Am i supposed to stand on my dick?".

Dad thinks fair enough, says he will drop by. Next day, boy comes home, asks his dad:

Kid: Dad did you come to school?

Dad: Not yet.

Kid: Well don't, i got expelled.

Dad: Why, what happened?

Kid: Today, they summoned me to principal's office. Math, gym and history teachers were waiting for me there.

Dad: What the fuck was the history teacher doing there?

Kid: I asked the same thing.

Edit: Grammar. English is hard.