Ah, I'm working on that -- trying to train myself to shout "Be Careful!!" instead of more creative epithets. Figure it might actually get more attention.
I'm afraid several drivers here have shamed me with undeserved tolerance/ kindness and I figured I wanted to be like them, even if it takes work.
But I'm hopeless at saying *anything* when there's too much going on - the mouth just won't engage. Probably a good thing for the most part :-)