An elderly man goes to his doctor and asked for some Viagra and also asked if they cut cut each one into four pieces. The doctor told him that he would be glad to write him a script for Viagra but told him that if they were cut in quarters that they would not give him a full erection.
The man replied "Doc, I am 96 years old, I do not want or need a full erection. I just want it to stick out far enough that I will quit pissing on my slippers."