No turn signals
They’re called “blinkahs,” first of all. Second, they are purely for decoration. And sometimes to declare that we are turning… whether or not your car, dog, or house is in the way.
“The Boston Left”
Also known as the “Massachusetts Left,” it happens when two cars are facing each other at a traffic light with no green arrows for left turns. In other parts of the country, standard procedure is to allow the oncoming car (who is driving straight) to go first, and the left-turning car to follow after them. But when the line of oncoming cars is never-ending, it makes a lot more sense to swerve in front of them just before the light turns green to avoid waiting for the entire light cycle. What? I have somewhere to be.
Parking space savers
Bostonian parking practices are sorta sketchy to begin with, but in winter they verge on barbaric. In New York and Chicago, each motorist in the neighborhood shovels out one parking space, clearing the street so everyone can park as usual. In Boston, each motorist in a neighborhood shovels out one parking space and puts a large dilapidated object in it. Removing that object comes with an implicit threat, something along the lines of, “If you park here, your car will get keyed, your windows will get smashed, or I will personally light you on fire.” Bostonians don’t understand why this is patently uncivilized and continue to do it despite their elected officials’ desperate pleas to stop.