There is no easy answer. All of us has our rage moments and all of us differ on how we handle them. I can't seem to tame down my anger so I just divert it to something else. If I want to ream into my husband, I go mow the yard and "ream the yard". Stuff like that. It only works to a point, however. Try grounding exercises, try reading, anything. I know in the car that obviousy reading and exercising is not wise to do, but the situation with the mother in the car is understandable. We all get ANGRY in the car. People drive stupid and act stupid in cars. Obviously she felt very safe in her expensive tin can, but once you were out of the car, she probably regretted honking her horn. I'm very lucky to live in Iowa. People rarely honk their horn. It is a alarm/warning for an impending crash, not for people to vent their frustrations on the next driver. That said, I've lived in LA and that is like a chorus of honking....but I still dont' think I've ever used the horn.....maybe I have horn anxieties? (hehehe)

Driving for me is a huge issue. I know the carnage that can happen in a vehicle..and so I tend to be overly cautious. I've had numerious people honk at me for not turning out into traffic when they thought there was ample space (uh...10 feet is not ample!!!). At the same time, I have to drive. I'm in control, that way, I feel safer.

Anthony has some great articles about anger. Check them out. It helps to understand where your anger is coming from and to diffuse it with better efficiency. Good luck...and lastly, give yourself a break. We ptsd'ers have short fuses. At least we have a reason! There's tons of people out there that have short fuses because they like it that way.....