If my grandfather's fight with liver cancer was any indication, I'll accept it when my time comes, too.

I've had a similar experience with most of my grandparents, they suffered unnecessarily while we were unable to do anything. One grandmother died peacefully only because she had Alzheimer and she was out of touch, but the early period of Alzheimer was unbelievably degrading to her and to our memory of her. Why would anyone want to go through that?