wow, popular thread, lots of pent-up anger??? Not sure if self inflicted violence counts but... I tried to punch the side of a van that turned in front of me after making eye contact. My feet were still clipped in and I fumbled so bad that my fender support rods jammed 2 holes into my shin bone. I wanted to be violent!!! I've also punched the side a SUV that passed me and turned into a parking lot more for educational purposed than intimidation. I also shouted "watch out, what do you think your doin..." into the rear side window of a car that did the same thing. there was a little kid back there, hope he/she asked his mommy why she drives so brainlessly.
I've come to realize eye contact doesn't work 100%, anyone carry stuff to throw at idiots who are endangering your lif? I was thinking BBs or acorns... or grenades. can't decide? I'd like to have something handy to pelt their windshields (not smash them) so they might access the part of their brain that thinks.