Sometimes I try to use so much nicotine and alcohol / drugs every so often when I lower my tolerance in hope that I have a heart attack or pass out in pleasure and never wake up. Never works, but I really don't have the right substances. Alcohol could theoretically work with a bit of kratom added, but if it doesn't the next day or two are pure misery. Cannabis might add to the raspatory depression, but it makes me nauseous and rethink my thoughts, because it is actually a healing substance for me, so I have stopped using it.
I have a chronic illness, your life expectancy is supposed to be lower, but my bloodwork comes back better than a healthy person.
Accident would be tough, I wouldn't want to take a minute risk to hurt anyone else, and the SI people report right before the crash is very intense, most hit their breaks and wind up badly injured.