A Texas cowboy walks into the dentist's office and after an examination the dentist says,

"That tooth has to come out. I'm going to give you a shot of Novocain and I'll be back in a few minutes."

The cowboy grabs the doc's arm and says, "No way. I hate needles I'm not having any shot!"

So the dentist says, "Okay, we'll have to go with gas."

The cowboy replies, "Absolutely not. It makes me very sick for a couple of days. I'm not having gas."

So the dentist steps out and comes back with a glass of water, "Here," he says, "Take this pill."

The cowboy asks, "What is it?"

The doc replies,"Viagra."

The cowboy looks surprised and ask,"Will that kill the pain?"

"No," replies the dentist, "but it will give you something to hold on to while I pull the tooth."