Just got this by e-mail
An elderly Texas cowhand went to the local drug store and asked the pharmacist for the little blue Viagra pill.
The pharmacist asked "How many?" The cowboy replied, "Just a few, maybe a half dozen. I cut each one into four pieces."
The pharmacist said, "That's too small a dose. That won't get you through sex."
The old fellow said, "Oh, I'm past seventy years old, and I don't even think about sex much anymore. I just want it to stick out far enough so I don't pee on my new boots."