Hey HDM~
Other than food, walking is my biggest struggle here. And it's not just the cars.
You said:
"What is it about driving a car that takes otherwise decent, friendly people think they have been transformed into the terminator?"
I have to say, I don't think it's the car. In a cafe' these people might be decent and friendly, but when they have someplace to be they are unmoved by your presence or your need for your fair share of space and there are no social rules for whose turn it is (that I've figured out yet)to pass. Locals in Argentina walk just like they drive, never looking at or seeing anyone and drifting from side to side, entering the sidewalk from blind doorways without so much as looking up from their text messaging, never saying excuse me or sorry even when they walk right into you, hit you with an elbow, a hip, a bag, step on you. They step in front of you and slow down, walk on your heels even though they can clearly see you have a crush of people in front of you and can't move any faster, have no hesitation about touching your body or your things and rarely apologize even if they really hurt you when they run you over.
It is a general disrespect for other's right of way and personal space. It is common in big cities everywhere, but I've never seen it to this extreme anywhere I've been. I'm with you on one thing, walking on the street is the most dangerous, and disturbing, aspect of life here. My personal practice is to keep from getting upset and continue to smile politely and ask politely to be excused. I do occasionally say something to someone who has been terribly rude. Many expats I know have challenged the idea that it's rude, because it's a different culture, but when you talk with locals about the issue, they know it's rude and they are embarrassed about the way people treat each other on the streets.
I notice that respect for home space is sacred here. People wont enter my home without asking permission, use my bathroom, no matter how many times I've said it's ok, or walk into a room in my home other than the living room until I have personally invited them, even if they are following me around. That respect doesn't translate on the street. Of course, that all changes when we see someone we know. It's all about personal relationships here...
It takes every new comer a little time to get used to the idea that they don't have the right of way when crossing the street. Does anyone know if people actually get run over, or if the cars are just pushing the issue and if one pushed back they'd give way? Not a question I plan to research personally by the way, just curious
~