Little Chris returns home from school and says he got an F in arithmetic.

"Why?" asks the father."

"The teacher asked, 'How much is 2x3?' I said 6," replied Chris.

"But that's right!" says his dad.

"Yeah, but then she asked me, 'How much is 3x2?'"

"What's the f ____ing difference? " asks the father.

"That's what I said!"