Good advice, Doctor!

A man took his wife to the doctor, because she was having some rather bizarre health issues. The doctor took down her history, and then took her back to the examining room. He examined her and then ran several tests. Finally, the Doctor came out to the waiting room and said to the man "Well, I've narrowed your wife's problem down to one of two things. She's either got Alzheimer's or AIDS."

The man said "My God, Doc! Alzheimer's or AIDS??? What do I do?"

And the Doctor said "Take her about 30 miles out of town and drop her off. If she finds her way home, don't fuck her."