I guess so, and I'm sure there's a reason he reacted the way he did. But to your point about him looking like he wouldn't be aggressive, there's several members on this board that if you saw their picture, you would think the same, but they're the same people who have an arsenal in their house. Just food for thought, can't really judge a book by it's cover.
I own more guns than almost everyone here. It doesnt make me aggressive in the slightest. I was an asshole long before I bought guns I carry a gun almost everywhere I legally can. If anything it makes me much less likely to enter into confrontation. I dont think that factors in here. I think that by owning guns its made me much less likely to be an asshole in all reality.