A man goes to a female dentist to have a tooth extracted. She pulls out a numbing needle to give the man a shot. "No way! No needles. I hate needles" the patient said.. The dentist starts to hook up the nitrous oxide and the man says: "I can't do the gas thing.. The thought of having the gas mask on suffocates me!" The dentist then asks the patient if he has any objections to taking a pill... "No objection," he says. "I'm fine with pills." The dentist gives him a couple of pills. He swallows them. "What are they?" he says. "Viagra," says the dentist. "Damn," the patient says, "I didn't know Viagra worked as a pain killer!" "It doesn't " said the dentist, "But it will give you something to hold on to when I pull your tooth."