I don't yell at others, but I do flash my bright lights into their car as they pass me like a maniac, or as I nearly get run over at a crossing. I really try to confront them that way, that they nearly had the opportunity of killing someone. Maybe if they watch the road a bit better, they'll be able to hit me next time.

Besides that I wave my arms 'a bit' overdone, to make sure they actually see me, however it's already too late.