I had an encounter over 6 years ago with a crazed motorist. I was going to work and some knucklehead was tearing down the highway at 90 or 95. He was moving so fast and stealthily, that I just barely saw him and avoided a collision with him, [I was going to change lanes]. The motorist also had to hit his brakes and take evasive action. He got irate and started to follow me. I presume he thought my lane change was deliberate, it was not. Well, he followed me for several miles and eventually tried to ram my car off the road. I am not a faint hearted individual. When this guy stopped the verbal abuse and hand gestures, [the finger], and resorted to physical violence, I had enough. So, behind me and got out. He threw the first punch and I had him up against the car and was pounding on him. Well, at that moment, the cops drove by and saw me beating up this motorist. It just so happened that there was a procession of 4 cop cars. So, they all took turns beating me. They did not care who started the fight or ask of its origins. This other motorist was a uniformed Air Force Captain. So, I was charged with assault and taken to court. The cops brutalized me, protected the road rage perpetrator, and threatened citizens who had seen what had actually happened, [my version].

To make a long story short, you should ignore these motorists if all they do is honk, yell at you, or flip you off. Try to avoid and evade them. But, if they physically try to harm you, do whatever you have to do to survive. Most states would allow "deadly force".

If someone cuts you off, pulls out in front of you,
drives slow, tailgates you, doesn't use blinkers...
all those things that irritates you while on the road.
Do you flip them off, yell at them out your window...
pull your gun out? Do you have road rage? Or do you
just ignore it and go on your way?