Jewish Boy In Catholic School

There is this Jewish boy who was born into a nice family. He was a very smart boy, but he never did well in school because he lacked motivation. His parents tried everything: meeting with his teachers, one on one tutoring, etc.; however, nothing seemed to help. Eventually, they decided to send him to a private school, thinking a different environment would him good. Unfortunately, there are not many Jewish private schools, so they had to settle on sending him to a Catholic school. Surprisingly, this worked. The parents got his first report card and were astounded: all A’s. The parents wondered what brought about the change. They said to their son “You made all A’s! Even in math! (previously his worst subject) what changed?” The son replied “When I walked in on the first day and saw the Jewish guy nailed to the plus sign, I knew they were serious.”