Anyway, when I lived up in Massachusetts, I used to always wonder why everybody around the country referred to us as "Mass-holes". That video brought it all back home to me. The way that that cop yelled was the way a lot of "tough-guy" Bostonians talked.
So when I moved to NYC, I braced myself for even worse because I figured NYC would be the major leagues of "Masshole" behavior. But I was fortunately proven wrong. By and large, I find the people in New York (including the police) much friendlier than what I experienced in Massachusetts.
About twenty years ago, when I was still up there, I was pulled over in similar fashion by an off-duty cop in an unmarked car. Had no idea he was a cop and he never even showed me a badge. But he yelled and screamed and threatened to haul me in for reckless driving because he thought I cut him off in traffic. Ironically, this was a rotary as well, but a rotary in Lowell (which is the town where the driver in this video was from).
If you've ever been to New England, it's very difficult to navigate a rotary without cutting somebody off. Otherwise, you will just go round and round in circles because once in, nobody will ever just let you out.
And it's not just a recent phenomenon. The illegal 1919 police strike fought bravely by Governor Calvin Coolidge and Police Commissioner Edwin Curtis revealed just how thuggish the cops were. Now, almost a century later since that example of union mob behavior, the roguishness of many member of the Boston police force is reaffirmed.