They failed to stop after a collision? Mate, ring the police. Get the other cyclists to do the same. If this is how the driver is gonna behave on our roads then they shouldn't be using them.
I think the security guy handled things very well. Professional and polite - just how it should be. A great asset to any company who employs his services.
Have you ever thought about maybe using your indicators before changing lanes, going round a roundabout or when exiting a roundabout?? Perhaps also checking your mirrors once in a while as well would be beneficial. Remember it's a Seat, not a BMW!
They failed to stop after a collision? Mate, ring the police. Get the other cyclists to do the same. If this is how the driver is gonna behave on our roads then they shouldn't be using them.