Nearly

[imax]

And both of the cagers were idiots, the one trying to pass and the other for not backing off when he (should have) realised what was going on

Is there a protocol for this situation.

A few years back I was in a car approaching a bend . Stupid driver attempted an overtake as a bike appeared round the corner. I braked, but so did the other driver. I then stopped braking to allow the car to drop in behind and received a gesture that definately wasn't a foccer salute from the biker and a blast of horn and full beam from the car. Once the bike was clear and we were round the bend, car overtook and then slammed on his brakes (I had anticipated this and backed off accordingly), before driving off , offering a gesture of his own out the window