An old man takes his sick wife to the doctor. After the examination the doctor pulls the man aside... "Sir... your wife either has AIDS or Alzheimer's but we can't figure out which." Horrified the man asks... "Doc, what are we going do do?" The doctor looks at the wife, looks back at the man and says... "Take her home and make her get out of the car half way there. If she shows up at the door, don't eff her."