So a newlywed couple window shopping in New York comes upon a store front full of clocks. Having a need for a clock at their new home, the two enter the store and behind the counter, find a man dressed in orthodox Jewish garb. They ask him if he could show them some mantel clocks. The man says, "I'm sorry, I have no clocks to sell". The perplexed couple responds, "but you have all these clocks the window". The man responds, "I'm a mohel, what would you have me put in in the window?