Argyle King
Legend
Depends on the hostage of course but if someone has a knife to someone's throat in my game I use a variation of 3e's coupe de grace. The hostage is considered unconscious which means that the attack has advantage and is automatic critical. In addition in my game if they survive that it's a fortitude save equal to the damage dealt (up to 20).
Even it's a common trope in TV shows and movies to have the bad guy with the gun to the head of a hostage of one of the protagonists telling the other protagonist to drop their gun or they'll shoot (something no one with any training would ever do by the way). The two protagonists look at each other and the captive does something unexpected and gets away with minimal injuries or the other protagonist shoots anyway ... it happens all the time. D&D is emulating fiction, not reality.
Sure, but that fiction needs some sense of danger to be meaningful. If our lived reality was that a bullet to the skull of a hostage or a slit throat were a regularly survivable thing, that trope of fiction wouldn't be very effective.
In other threads, I've used professional wrestling as an example. I think what I've said in those threads also applies here: even if I'm familiar with the tropes and know how things generally play out, I still need some semblance of being able to buy into the threat being real.
After a certain point you aren't going to survive a fall in my game either.
I think I agree with how you handle that.
It's a death spiral and simplicity thing to me. You may have found victory in spite of injury in an encounter. PCs put their life on the line constantly, a death spiral would be deadly and wouldn't work for the game. In addition there are plenty of stories of people continuing to fight despite serious injury, adrenaline is a hell of a drug.
Admittedly my first two are house rules but that's part of the appeal of the game. They are really minor tweaks that make the game work for me.
Agreed on the adrenaline thing.