+1
I have driven in about half of the US states, plus eastern Canada, and I have to say that the most dangerously-aggressive drivers whom I observed were in MA. Even after several decades of driving on the NJ Turnpike, the PA Turnpike, and other state tollways, nothing prepared me for the Kamikaze drivers on the Mass Pike, heading toward Boston.
Even on local roads, the amount of rudeness and aggressive behavior that I encountered in the Boston area was truly appalling. As but one example, a few times I was waiting at a red light in the right lane (which was designated for right turns on red AND going straight ahead on green), and even though I hadn’t signaled a turn and was waiting for the light to turn green so I could proceed, Massholes honked at me. Apparently, if THEY want to turn right on red the car in front of them should too, even if the car in front of them isn’t signaling for a turn, and is waiting for the light to turn green so that he can drive straight ahead.