If I could count the times I've lost my cool during my commutes or just when out joy riding.
Some that come to mind:
I worked at Fort Hood a couple years back and had to ride in what is some of the worst stop and go traffic getting onto the post (this was after September 11). On one particular morning I had a motorist nudge my back wheel on my mountain bike. I assume he thought he was funny. I flipped out. I threw the bike to the ground and was opening his car door when the MPs actually pulled me back and arrested him. I can say without a doubt that if I had 15 more seconds, I would have put my cleat to his head.
Last year, right before I took my Fatty-fatty-I'm such a fatty hiatus from biking, I had a couple pass me in an old Sanford and Son-quality pickup screaming their lungs out at me on a downhill. I got to the red light about 2 seconds after them and literally almost climbed into the passenger window to explain to them in very clear english that "I have a right to use this road. If you somehow disagree with my right, I'll be more than happy to discuss it further with you fat asses over there in that parking lot, but I'm afraid two out of the three of us are going to making a trip to Scott and White. I won't be one of them, ****ers."
They both were ash faced and clearly wanted to get the devil that was in the window to go away. They apologized profusely.
To make matters worse for them, they were heading to the bus station to pick up one of their kin apparently, because I had time to change, talk with a few of the press crew in the back while staring at them in their truck. The press guys made it a point to stand there and be very loud and aggressive about ending that truck's life if Dean gets hurt by them.
Other than that, the occassional curse, hand slammed down on a hood has always worked. Its what I have taught my wife now that she has joined me in the lifestyle. Considering we've got a trailer each with one of our son's in it now 90% of the time, we're very aggressive to get "our space' on the road.