I swore that I'd never drive in Boston again after my first, disastrous experience there (climaxing by being sideswiped by an aggressive motorcycle driver when I was stopped in a parking lot!) Bostonians hate outsiders, as well. Even the West Newton police refused to give me directions.

New Zealand was interesting. They don't believe in placing signs well in advance of decision points there - signs describing exits from roundabouts (of which there are many) are placed, oh, about 10 metres from entry to the roundabout. OTOH at least you can stay in a roundabout until you figure it out, and traffic there is so low that it's not particularly stressful to make mistakes.