A guy goes to a dentist to have a tooth extracted. She pulls out a large syringe to give him a shot.
"No way, no needles! I hate needles!" he says.
She hooks him up the nitrous oxide tank, and the man says, "I can't do the gas thing. Just the thought of having a mask on my face suffocates me!
The dentist then asks the patient if he has any objections to taking a pill. "No," he says, "I'm fine with pills." The dentist gives him two little blue pills and he swallows them.
"What are those?" he asks. "Viagra," she replies. "I'll be damned," says the patient, "I didn't know Viagra works as a pain killer?."
"It doesn't," says the dentist, "But it will give you something to hold on to when I pull your tooth."