The dentist 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 objects. I can't do the gas thing. "The thought of having the gas mask on is suffocating me!' The dentist then asks the patient if he has any objection to taking a pill.. "No objection," the patient says. "I'm fine with pills." The dentist then returns and says, "Here's a Viagra." The patient says, "Wow! I didn't know Viagra worked as a pain killer!"' "It doesn't' said the dentist,'but it's going to give you something to hold on to when I pull your tooth."