There were three friends, a alcoholic, a chain smoker, and a homosexual. They went to the doctor and he said if they indulge in anymore of their activities they would surely die.

One night they were walking down the street and they came to a bar. The alcoholic smelled the liquor and couldn't resist buying a drink. As soon as he took a sip he dropped dead.

The other two saw this and ran out. While they were looking for a phone to call the police the chain smoker spotted a cigarette. The homosexual looked at him and said, "You know if you pick that up we both are going to die right?"