Hypothermia! Of course I'd be drunk out of my mind while I do it. A while ago I camped out in one of the state parks of Colorado in the mountains, and being from Texas, I wasn't used to how cold it could get. All my drinking water froze in my tent and I couldn't sleep because I kept waking up to make sure my dog was still under the covers and warm. This was without any major snowstorms. It seems simple enough to wander out of sight of the paths, get drunk, strip, and then shake and shiver until I can't feel anything. There was almost no one at the park in winter, so almost no chance of getting caught.