You are probably actually less likely to engage in useless road rage because you realize the consequences of escalation.
Not sure immediately, I do seem to remember reading a study that proved your comment. I know as a responsible CWP firearm owner, who has the legally government issued permit so I can carry a firearm in my vehicle without it being visible to tempt thieves, I know that I refuse to engage road rage drivers for that added reason. I will not open myself to the results of yielding to emotion brought on by some liberal idiot who thinks they never have to take responsibility for their actions towards other people.
At the same time I will not hesitate to defend my person, my family, or even one of the gun-ban nuts should their life depend on it.