I have watched that gorilla video like a dozen times, and shown it to as many people as I can.
I still laugh my ass off when the silverback kidnaps his own daughter for a playdate then sassily shuffles away at light speed and swats the ball out of the way while the mom is in the background like "for fucks sake not again"
As a MA resident, I have always said that we're highly aggressive drivers but overall pretty safe as long as you can walk the walk. Just never show fear.
Its actually really easy, don't be a fuckwit and you won't get fucked with.