Try to take his sword or shades, or make fun of the gray streaks in his hair despite being 30-35 (not that I would anyway, they actually make him look cooler). He may be a respectable, level-headed guy, but give him any reason to make him see your existence as meaningless, and he WILL find you, and he WILL end you, and you can't stop an angry spirit very easily.
Edit: Now that I have posted this, I'm seriously thinking of changing my avatar, so this post will not make any more sense after that.