I've snapped off a few right hand mirrors in my time. And I keep telling myself to calm down, but i've seen drivers almost hit me when they're the only one on a multi lane road. Or pass me only to make a right turn right in front of me.
Once had 2 girls in a minivan come up right behind me and lay on the horn. I must of passed them and they did it again. After the 3rd time, I was able to catch up to them at a light and bang on the driver's window. They were so surprised they ran through the red light.
That taught me a lesson and i've not had any "bike" rage since. I don't want anyone to get hurt.