Bill,
You are correct that I haven't driven in Boston. But out here road rage has been so common for so long that they hardly mention it any more on the news. And most of it is just caused from pure stupidity and people not paying attention. The speed limit from here to Redding is 65 and then goes up to 70. The other day I followed some guy onto the freeway, ( 3 Lanes Wide ), and he entered it at about 40 MPH, drive across all 3 lanes and got in the fast lane and stayed there for about 2 miles backing up traffic. Then when he got to the place he wanted to turn, he just turned right and drove back across all 3 lanes to make his off ramp. He missed it due to some person that was really pissed refusing to lock up their brakes so he could cut through. When I turned off, that idiot was still going down the road ad about 40 with several people yelling and shaking their fists at him and the person that wouldn't let him into the outside lane where he should have been all along staying right beside him making sure he couldn't get to any off ramp. Now that was wrong too, but it is just a normal driving type incident around here any more.
Ron