A young boy is doing poorly in math at public school. His mother decides to send him to a private Catholic school to rectify the situation.

Lo and behold, after a semester in the new private Catholic school, the boys grades were straight As, even in math!

Surprised, his mother asked him how he liked his new school.

Oh, its all right, I guess, he replies.

They must be teaching you some new tricks!

Not really.

Then what do you think is making the difference in your math grades?

Well, he says, as soon as I saw that guy nailed to the plus sign, I knew they meant business!