As a former driver of heavy vehicles (Coaches etc) in Sydney in the early 90's and a former driving instructor (Darwin '95-'96)and a motorcycle rider - for some 15 years - I can vouch for some of the blatant stupidity of drivers on the roads...To the point where I've gone WAAAAAY beyond being merely pissed off about it.
But what can you do? I was just thinking about it the other day and it occurred to me that it would be so easy to get caught up in a road rage situation which could, in turn, lead to something happening that you may regret for years to come (or longer).