Clarification on the flipping-off

I don't get angry at peoples' bad driving; not at all. I tend to completely ignore that, actually, since I assume that everyone drives like a lunatic and so nothing's really surprising.

I do get blindly, almost murderously angry at people who get angry while they're driving and take it out on their fellow motorists or my fellow peds, especially through sudden torrents of verbal abuse. These are the people that I flip off. This helps soothe the fantasies I have about pulling them from their cars and beating them to death right there on the street.

I mean, I have the fantasies anyway, but at least I feel I did something about it.