I heard this one at Bible study this morning.

A kid was having a terrible time with math, and his parents didn't know what to do with him. No matter how much they coached him, he flunked every test. Finally, they decided to send the boy to a Catholic school that had an excellent reputation for success in math.

Sure enough, within a week, the boy had perfect grades in math, and he continued to do well for months. Finally, his parents asked him what had made the difference.

"Well," the boy said, "They took us into a big building, and when I saw what they did to that guy hanging on the big plus sign on the wall, I knew they were serious."

OK, so there's your Catholic joke for the week.
-Joe-