I have a similar problem.
First of all, I am glad you were able to make the maneuver and came out of it unscathed.
I empathize with you. I live in South Korea and people drive with such reckless behavior the worst of which is not using their turn signal.
I was involved in an incident in March where a woman was in a u-turn lane, but was suppose to yield to the on coming traffic. She failed to do that and cause the car in front of me and myself to slam on our brakes. I made the mistake of speeding up and getting in front of her and slamming on my breaks twice before returning to a regular speed. She sped up and got in front of me and slammed on her breaks causing me to rear end her. We both pulled over and the second mistake I made was getting out of the car and screaming at the top of my lungs (though I didn't get close to her car). She refused to get out at that point and I left (another mistake). Eventually I was pulled over by the police and she accused me of being drunk. I was even more pissed and started yelling with half a dozen South Korean police present that I wanted to take a breathalyzer immediately (which I passed), then I told her I was going to sue her for slander. We went to the police station to file a report.
I had to go to another police station (closer to where the accident actually occurred) and sit there and discuss the whole thing. The whole thing revolved around a negotiation to try to "solve" it without police involvement. Needless to say I was the one holding my tongue and this time she sat there ranting and raving and it worked against her. My insurance paid for some of the damage and both of us ended up getting fined about 40,000 KRW (about $50) and were given 10 points on our driving record.
Not a good experience.
= new reply since forum marked as read