The other 89 year old man

Bob, a 89 year old man, went to the Doc. for his general check up. The Doc did all the usual tests, pokes and prods and told Bob that everything looked fine and that he was in good health. He then asked Bob if there was anyhting else he could do for him, Bob replied; by saying "Yes, Doc. I would like to have a 90 day supply of Viagra." Suprised by his answer the Doc. said "I don't think your heart is ready for or can take the stresses in volved in sex, are you sure this is what you want?" Bob replied by saying "Absolutely, but I think you have the right idea about what I'm goin to do with them. I'm going to cut each on into 1/4's and ..." The Doc. interuptes saying "Now Bob if you do that there not going to accomplish anything." Bob states, "If you'd let me finish I was going to say I was going to cut them into 1/4's to give myself enough of an erection to keep from peeing on my feet."