An old man goes into a drug store to buy some Viagra.  "Can I have 6-tablets, cut into quarters..??"

"I can cut them for you" said Dan, the pharmacist.  "But, a quarter-tablet will NOT give you a full erection."

"I am 96" said the old man.  "I don't want an erection.  I just want it sticking out far enough so I don't piss on my slippers."