All of us can usually just walk away from a confrontation. But between adrenaline, terror, rage, past traumas....it's easier said than done.

I don't think either person behaved well in this situation.

But I know that if a strange man approached me in a public place and started trying to lure my dog towards him, I would freak the fuck out.

Expressing anger is not always evidence of pathology, violence, or even bad behavior.