A dentist was getting ready to clean an elderly lady's teeth. He noticed
that she was a little nervous, so he began to tell her a story as he was
putting on his surgical glove -"Do you know how they make
these rubber gloves?"

She said, "No?"

"Well," he spoofed, "down in Mexico they have this big building set up with
a large tank of latex, and the workers are all picked according to hand
size. Each individual walks up to the tank, dips their hands
in, and then walk around for a bit while the latex sets up and dries right
onto their hands! Then they peel off the gloves and throw them into the big
'Finished Goods Crate' and start the process all over
again."

Upon hearing this explanation the woman sat stoic, not laughing the
slightest bit.

A few minutes later, during the procedure, he had to stop cleaning her teeth
because she burst out laughing.

The dentist was baffled, and asked her what was so funny.

The woman blushed and exclaimed, "I just suddenly thought about how they
must make condoms!"