A man is walking through the Jewish quarter of town when he checks his watch and notices it has stopped. He hates not having the time with him and so looks around for a jeweller's shop. He is unable to read any of the shop signs, but he notices a small kiosk, in the window of which is an assortment of clocks and watches. He goes in, takes off his watch and asks the man behind the counter if he can mend it. The man shakes his head sadly and says that he does not mend watches. Assuming that the shop only retails, the man asks if he has a cheap watch he can buy as a replacement until he gets it fixed. Again the man shakes his head and says, "I'm sorry. I don't sell anything. I am a mohel." The customer gets angry at the waste of time and snaps, "Then why do you have clocks and watches in your window?" "And you," replies the mohel, "what would YOU put in the window?"