Son takes his father to the doctor. Doctor gives them the bad news
        that the father is dying of cancer. Father tells the son that he
        has had a good long life and wants to stop at the bar on the way
        home to celebrate it.
        While at the bar, the father sees several of his friends. He tells
        them that he is dying of AIDS. When the friends leave the son
        asks, "Dad, you are dying of cancer. Why did you tell them that
        you are dying of AIDS?" The father replies, "I don't want them
        fucking your mother after I'm gone!"