The Dentist
 

This is another old one, sorry if it's on here somewhere else...

One day while doing some minor work on an elderly lady's teeth a dentist joked while putting on his gloves "Hey, Mrs. Johnston you know how they make these latex gloves?" "No, how?" "They have a bunch of guys all with different sized hands who spend all day dripping their hand into a vat of latex, when the latex dries they toss the finished product into the appropriate bin." Mrs. Johnston shrugged and the dentist went to work. About ten minutes later with a mouth full of gauze Mrs. Johnston started laughing. The dentist said "I take it you just got the joke?" "No, I was just imagining how they make latex condoms."

Just what we all need, a comic dentist!