An alcoholic, a chain smoker and a homsexual go to the doctors. Doc says "if any of you indulge one more time you will die!". As they walk home they pass a bar. The alcoholic rushes in has a shot of whisky and falls of his stool, stone cold dead. His friends are shocked. As they walk along they happen upon a cigarette butt lying on the ground still burning. The homosexual looks at the chain smoker and says "if you bend over to pick that up we're both dead"!!