A man went to the dental surgeon to have a tooth pulled. The dentist pulled out a freezing needle to numb the area.
 
 "No way! No needles! I hate needles! "the patient shouted. So the dentist started to hook up the laughing gas, and the man again objected.
"I can't do the gas thing! The thought of having a gas mask on is suffocating to me!" The dentist then asked if the man had any objection to taking a pill. "No," the patient said, "I'm fine with pills." The dentist said, "Here is a Viagra tablet.
"The patient responded, "Wow, I didn't know Viagra works as a pain pill."
"It doesn't," said the dentist, "but it will give you something to hold on to when I pull out your tooth."