Partial Dosage

An elderly gentleman went to the local drug store and asked the
pharmacist for Viagra. The pharmacist said "That's no problem. How
many do you want?"

The man answered, "Just a few, maybe 4, but cut each one in 4 pieces."

The pharmacist said, "That won't do you any good."

The elderly gentleman said, "That's alright. I don't need them for sex
anymore as I am over 80 years old. I just want it to stick out far enough 
so I don't pee on my shoes."