I usually Passover jokes such as these, but this one's funny enough to make you schvitz yourself.
A Jewish lawyer was troubled by the way his son turned out, and went to see his Rabbi about it.
"I brought him up in the faith, gave him a very expensive bar mitzvah, cost me a fortune to educate him. Then he told me last week that he has decided to be a Christian. Rabbi, where did I go wrong?"
"Funny you should come to me," said the Rabbi. "Like you, I, too, brought up my boy in the faith, put him though university, cost me a fortune, then one day he came to me and told me he has decided to become a Christian."
"What did you do?" Asked the lawyer.
"I turned to God for the answer," replied the Rabbi.
"And what did he say?"
He said, "Funny you should come to me..."