I suppose my new, more reflective attitude is related to riding sport bikes.Have you ever seen an upset cyclist challenging a motorist? It's pretty amusing and hard to take seriously most of the time - especially if there are lycra and road shoes involved, not to mention the typically irrational and exaggerated comments that come out in the heat of the moment.
I'm not saying I don't get agitated and confrontational sometimes, just that it's rarely a good idea.
There I can inflict as much damage as I want: boot doors or smash mirrors, and just throttle away. On the other hand, I am usually going so fast that there is no chance for an incident.