I've been thinking:
How unrealistic are HP, I've always explained it to myself as HP being a persons weariness in combat. So If and ogre swings an axe and it hits you...you dead
so I've just always thought of an ogre hitting a barbarian as him dodging its attack, but that takes energy, and thus the waning of hitpoints is the exhaustion of the warrior, so when his HPs gets to -10, that ogre actually hit him with the axe. Doees this make any sense at all?