A Jewish man lost his bike... and went to his rabbi for advice. "Next week come to services and sit in the front row," the rabbi tells the man, "and when we recite the Ten Commandments, turn around and look at the people behind you. When we get to 'Thou shalt not steal,' see who can't look you in the eyes. That's your guy." After the next service, the rabbi is curious to learn whether his advice had worked or not. "So, did it work?" he asked the man. "Like a charm," the man answered. "The moment we got to 'Thou shalt not commit adultery,' I remembered where I had left my bike!"