As the dentist was about to administer an injection of Novacain prior to a root canal the patient stopped him and said, "Don't bother doc. Pain doesn't bother me."

"But Sir", said the dentist, "this is going to be very, very painful."

"No worries", said the patient. "Pain simply doesn't bother me. Go ahead."

So the dentist proceeds and completes the procedure. Looking down at his work he wonders how the patient was able to endure what he knows was terrible pain.

"Tell me", said the dentist, "have you ever been bothered by pain?"

"Twice", said the patient. "One time, while on a deer hunt, I walked off into the brush to take a BM. I didn't realize I had squatted over a bear trap. Before I knew it, the trap snapped shut around my private parts."

"Wow", said the dentist. "That must have been really painful. When was the other time?"

"When I ran out of chain", said the patient.

Another Great Reason To Drink Whiskey and/Or Bourbon.