yea, fair point on the video, not really an expert in this stuff. It would have shown the speeds involved and that I had to jam on the brakes and that he then then stopped and blocked the exit (the lorry was stationary).
The biker threatened to break his skull and punched his wing mirror. The taxi driver simply removed himself from the situation. The bike was simply in the way.
Ah, but your mistake was thinking that a BMW driver (even driving an old beat-up one) would actually stop, roundabout or not! He's now moving onto tailgating the pickup in front no doubt.
Caught on camera driving the wrong way down a motorway hard shoulder to avoid traffic.