There are far too many variables to get caught up in road rage.
For instance, the other day I was behind a car that was behind a school bus, the light was green. The school bus turned and stopped mid turn to let the kids off. (is that legal?) Of course the drivers behind had no warning that the bus driver would stop mid turn. The light changed and the bus road off. The car in front of me was too close to the corner. A pick up truck came around the corner, and yelled out the window at the driver of the car in front of me.
Sometimes we just get stuck in situations we have no control over. Why do people assume that people are out to do the wrong thing. How many times have I gotten stuck in an intersection because it looks like the car in front of me is moving right along, but then it isn't.
Not everyone drives the same route everyday, not everyone knows about that particular roadway or if you have time to make it through that particular light. Maybe someone coming towards you has glare in their eyes. Maybe they slam on their breaks because an animal ran in front of the car. And yes, maybe they even have a "baby on board".
Think before you start yelling, pay attention...get off your cell phone.
