An elderly gentleman shuffles into a drug store and asks for some Viagra. That's not a problem says the pharmacist, "how many do you want? Just a few, maybe four, says the pensioner, "but could you cut them into four pieces?"
That won't do much good replies the pharmacist. The customer looks at the man and sighs "I'm 83 years old - I'm not interested in sex anymore" he says "I just want to stick it out far enough so I don't wee on my shoes"