Yep, driving home from the store yesterday in the right lane, I had a guy cut in front of me, no signal, maybe a foot of clearance, then he slowed down... Had I my pistol with me at the time, you can be sure it would've been in my hand. My reasoning is that vehicles can be come quite effective lethal weapons when abused, much the same as many other things, and actions such as these I perceive as a direct threat and will react accordingly.