Little Teddy’s doing very poorly in math, so his parents enroll him in Catholic school. The first day home from St. Michael’s, he walks straight to his room to do his math homework. After dinner Teddy marches back upstairs and starts calculating again.

His mother visits his room and says, “You’re working awfully hard!”

“Well,” Teddy replies, “today when I saw that guy nailed to the plus sign, I knew they weren’t fooling around.”