This guy goes to his doctor and tells the doc he is feeling really crappy.
So the doctor runs some tests and tells him to come back the following day for the results.
The guy comes back and the doc says "Well, I have bad news and worse news. Which do you want to hear first?"
"Give me the bad news first, doc."
"OK, you have AIDS," says the doc.
The guy crumples in disappointment and anguish, sheds a few tears, and finally composes himself. "So you have worse news?"
"Yes, the worse news is that you have Alzheimers."
The guy again crumples in disappointment and anguish, but after shedding a few tears, he brightens up a bit and says "Well, doc, at least I don't have AIDS."
Merry Christmas. Get better, Mr. Potter.