1. Cruising Storrow Dr in your moving van
It’s a tried-and-true formula: tall truck + low clearances = you’re stuck. You'll be reminded every second that you're screwed by the the angry drivers trapped behind you cursing your existence.
2. Wearing Yankees gear
This should be a no-brainer, lest you want to receive an errant beanball or beanbottle. Now, a “Yankees SUCK” t-shirt, those are always in-style and hilarious.
3. Taking the Green Line when the Sox have a home game
Speaking of the Sox, sure, you have an undying affection for the hometown team, just not when you're coming from Downtown and the first pitch is at 7:05. Avoid the beleaguered Green Line on game days, and even non-game days.
4. Driving Downtown
The streets of Boston were formed by meandering livestock back in the day and therefore are not very car-friendly (not even horse and buggy-friendly). Oh, and good luck with parking.