I've become a really good ignorer.
When people make mistakes, give me the finger for doing something right.. Calling me a "stupid ricer top bloke" at a set of lights, I just sit there and listen to my music.. Don't make eye contact and just ignore them.
..They love it.
Sure, it gets annoying, and when someone doesnt indicate at a round-a-bout or whatever, it gets on your nerves.. But I've learnt to get over it.
I know people personally who carry weapons in their cars because they are afraid, and I've watched a few videos of Americans who shoot at each other for cutting the other one off etc.