This Jewish father wants to send his kid to school, but is not sure where to send him to. Finally he just looks at the brochure from Catholic school and thinks that since it's priced reasonable and sounds like a nice place all together, he'll try him over there.
His kid goes to school the first semester and comes home with a report card.
His father takes a look, turns to his son and says: -"A plus in math??? How in the hell did you pull that off since that's your worse subject?"
" Well father, the first day I walked into my math class and saw a guy hanging on a wall nailed to the plus sign - I knew they weren't mucking around!"