A burly man goes into the dentists office with a very swollen jaw.

The
dentist examines and tells him he has severely impacted wisdom teeth and
they must be extracted.

He explained it would be very painful and
suggested sodium pentothal.

The man said "No" so the dentist said he would
give him a local.

He refused again and told the dentist to just pull
them out.

With great strain the teeth were finally extracted and the man
didn't even flinch.

The dentist then asked him how he managed to withstand such pain and he
answered that he had already endured the two worst pains.

"And what were
those pains?" asked the dentist.

"I was hunting and had to take a dump and squatted over a bear trap and
it closed on my privates."

"What was the second pain?"

"When I ran out
of chain!"