Say you're a good guy. You suddenly find the Implacable Man, Eldritch Abomination, or some other terror is in front of you. There's no escape, no possibility of punching it out, no amount of Heroic Willpower is going to save you, and either death or a Fate Worse Than Death are certain. Alternatively, say you're a bad guy and maybe the Badass Anti-Hero you pissed off has finally caught up to you on his Roaring Rampage of Revenge. Maybe you're just an unfortunate Mooks who turned a corner while walking your patrol in the Supervillain Lair and came face to face with The Hero.