Perhaps the driver had unwisely used his horn to encourage the Thai (who was meandering along the road very slowly) to move over so that he could pass?
Mr Thai, in typical fashion then brake-checked the Porsche, got off his contraption and started to vent his rage at the driver for having the temerity to use the klaxon.......they do that so I've heard.
Driver gets out to remonstrate, Thai starts swinging and ends up in IC.
(Nice to see the Gallophobes, not yourself, out in their all too predictable, knuckle dragging, dribbling masses, as per usual on these pages)