I can be prone to get rather aggrivated at the odd driver now and then, but never to the point i would get out of my car.
I find that its not the fact i didnt 'get into the space' or whatever it may be, its more the fact that the person is consciously making it their goal not to let me in. Its the arrogance of someone or the selfishness of them that usualy bugs me. I know fine well i should have patience and wait my turn, but i always feel that if it was me in their shoes, id have let me in. bah, who knows the idiosyncrasies of road rage, but id never get out the car and get physical.