A dentist noticed that his next patient, an elderly lady,
was looking very  nervous so he decided to tell her a little joke as he put
on his gloves.

"Do you know how they make these gloves?" he asked.

"No, I don't" she replied.

"Well," he spoofed, "there's a building in China with a big tank of latex.
Workers of all hand sizes walk up to the tank, dip in their hands, let them
dry,
then peel off the gloves and throw them into boxes of the right size."

She didn't crack a smile. "Oh well, I tried," he thought.

But five minutes later, during a delicate portion of the dental procedure,
she burst out laughing.

"What's so funny?" he asked.