The female dentist pulls out a numbing needle to give the man a shot. "No way! No needles! I hate needles!" yells the man. The dentist starts to hook up the nitrous oxide and the man objects. "No way! I can't do the gas thing. The thought of having a mask on suffocates me!" The dentist then asks the patient if he has any objection to taking a pill. "No objection at all" the patient says. "I'm fine with pills." The dentist 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."