Too important to use indicators when doing right turns and U-turns at roundabouts, apparently. Using a lane to go straight ahead and then suddenly turning around with no indication messed up my braking score on my blackbox, the clown.
Gave him a hand gesture which he seemed to be confused by, and then I realised he's in a BMW so obviously indicators is an alien concept to him. I apologise.
Skoda driving down the wrong side of the road.