An elderly man complains to his wife about feeling a little worse for wear and after a lot of persuasion agrees to go and see a doctor. The doctor checks him out and asks the man to return a few days later for the results.
The doctor turns to the patient and says, "I have some good news and some bad news for you. The bad news is that you have terminal cancer, polio and have tested HIV+. But the good news is you also have Alzheimers disease so in about 10 seconds you'll have completely forgotten about it."
"Ooh good" said the patient. "What was the bad news then?"
Many articles taken from 'A word with the doctor', by Dr. John Windsor.