Remembering a favorite

When Alan King passed away this week, I lost one of my favorite comedians. I got out several of the books he had written and came across one of his stand-up jokes:
An Englishman in New York stopped at a window in the middle of which stood one lone clock.
The Englishman went inside.
"Hello!" he called.
From behind a curtain stepped a bearded man in a skullcap.
"Would you please inspect this watch?" The Englishman worked at the strap. "Tell me whether it needs___"
"Why are you asking me?" asked the bearded one.
"Aren't you a jeweler?"
"No. I'm a mohel."
"A what?"
"A mohel. I perform circumcisions."
"Good Lord!" exclaimed the Englishman. "But why do you have a clock in your window?!"
"Mister," sighed the mohel, "what would YOU put in the window?"