There was this guy who went to the dentist to get a tooth pulled.
First off the dentist said, "I'll give you a shot to numb your jaw."
But the guy said, "No, please don't do that, I'm
afraid of needles."
The dentist said, "OK, I'll get out the gas to put
you to sleep."
However the guy said, "Nope, I'm allergic to the gas."
So the dentist said, "Just a minute, I'll go look
for something else."
After awhile he came back and gave the guy a couple of pills. He took the pills. Then he asked,"What kind of pills were those?"
The dentist said, "Viagra." The guy said, "WHAT! Why did you give me Viagra?
The dentist said, "They won't help the pain, but
they'll give you something to hang on to while I pull your tooth."