Yes, of course. I'm not Dr. Bibber, one wrong move and you're dead. In fact I've only "killed" a character like this once. And even then I allowed the rest of the party to retrieve the corpse and resurrect them the next session. Usually my players are observant enough to notice the "Certain death this way" signs.

This is more of a problem with newer group constellations where people still need to proof how random and quirky they can be and where the player GM dynamic is not yet fully fleshed out.