They invented all these torture methods because unbearable pain is so unimaginably bad . Imo every sentient creature is under constant threat of such pain anyway which is one reason why life is bad . I'll take none of those torture methods . I'll take N or shotgun or high velocity rifle to my head which will explode my head killing Me instantly no pain . I can't stand pain. Imo a high velocity rifle or shotgun contact shot to the center mass of the head will be instant death the proverbial button. I will go pain free . Fuck pain = life