I never used to think I would see road rage here. Foolish driving, yes. But not road rage. I have had several confrontations with drivers in the past year where they took things too far in my opinion (chasing me, shouting, making obscene gestures) and surprisingly a few times It was with locals who had their families in the car. Each time, they were trying to do something similar to what you described and were clearly in the wrong. It's not only locals, of course. There is enough hot headed driving to represent every nationality, but I do think most expats are somewhat concerned about not getting kicked out so tone down their actions.