SN. If I somehow survive, I can try again with the stash I would have hidden away. But LetzeAusfahrt's experiments with nitrogen hypoxia and a mask make it clear that this method is sudden, painless and peaceful after being tested thoroughly and practiced properly. (That's another clincher for nitrogen hypoxia for me, the fact you can test it out before with a mask held loosely to the face before finally strapping it on securely.)