@Betony Crazier than the nymphomaniac judoka, cross-dressing cannibal, brain-damaged military, killer fetishist, and the plethora of other refreshing personages that fuels this story?
I disagree with you until now the only people i saw he kill were bandits, pretense yakuza, and some soldiers, i don't think he is petty enough or cares for the opinions of those grunts enough to kill them because of some insult, he did it as a showing of strength nothing more nothing less, however... you are right too, he IS crazy but seriously who in this godforsaken story isnt?