Reason

While wielding this weapon, when you drop to zero hit points, you do not die. Instead, you must continue fighting until you destroy your foe, and every round you are alive, you take 2d8 Force damage until you either die or are victorious. If you reach your total hit points in the negative, you are completely obliterated, with no chance of save.
Maybe they won't listen to you. But they'll listen to Reason.