Almost killed a motorcycle rider this morning myself at one our many notorious marked U-Turns here, they even put a large speed bump to stop stupid people, but they still try to fly over the speed bump and deny the U-Turning vehicle to complete its turn. If you are behind the Speed bump, and the U-Turning vehicle is already in the intersection turning, DO NOT TRY TO FLY PAST THE VEHICLE BEFORE IT COMPLETES IT'S TURN!!! I swear Thai people were born without brains, or at the very least should never have been given a drivers license. Most of Thai driving problems could be handled with putting people through a proper road test before ever giving them a license, well that and enforcement of laws/rules.