A man visits his Rabbi
One day, a Jewish man visits his rabbi, with a worried look on his face.
"Rabbi Moishe, I've got quite a problem. It's my son, see. He went to Jerusalem to make pilgramage to the Wailing Wall, but when he came back, he'd become a Christian! I tried to ask him why he converted, but he didn't give me a straight answer. How on earth do you think that happened?"
The other Rabbi clicks his tongue in disbelief. "I wish I could give you a good answer, but to tell you the trut…