I'm going to be a bit morbid here, but of all the diseases or mechanical ways to die, which would be your LAST CHOICE if given a preference. Dead last, so to speak.
I've seen a video and heard some stories. I work in a CNC shop, but I'm not a machinist. I think it would be terrifying for a moment, painful for a moment, then nothing. Gruesome for sure, but I think they're are certainly worse ways to go. I believe the 'popular' video is called, pink mist, or something like that, if that's any indication of the outcome.