One morning, two 80-year-old men sat talking about the weather and the latest in medical science and such, when one brings up the latest male medical miracle, Viagra. The other elderly man isn't familiar with Viagra and asks the first man what is it for.

The first man says, "It's the greatest thing I've ever known. The Fountain of Youth! Makes you feel like a man of thirty."

The second man then asks, "Can you get it over the counter?"

"You probably could, if you took two pills," replies the first man.