As the primary care provider for my mother (6 years now), who is in the terminal stages of Alzheimer's, I can tell you that there is nothing--absolutely, positively nothing--funny about this condition. It robs a person of his/her dignity and identity and it ultimately becomes much harder for the care provider than it is for the patient. Joking about Alzheimer's is unconscionable. If I am in a situation where some modicum of diplomacy must be exercised in expressing hostility, I am now inclined to say, "I hope that you develop Alzheimer's or worse, yet, that you become the primary care provider for an Alzheimer's patient." It is an extraordinarily cruel disease.