The dentist pulls out a numbing needle to give the man
a shot of Novocain. “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, suffocates 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!"