It could be Tattletale, Accord, Armsmaster, Piggot, Tagg, Alexandria, etc...it was indeed an entirely in character action to want to lash back at someone poking at you.
It was also entirely self destructive for self satisfaction. That's the point being conveyed. Sure, setting their car on fire and then walking off while flipping them off is satisfying, it doesn't benefit us, doesn't actually hurt them enough, and creates an enemy.
There is a reason you do no small harm. If you are taking an action which creates an enemy where there was none, you should be either gaining significant benefit, OR ensuring that said enemy is no longer an issue.
We should rethink needlessly pissing off people in general.