Hardly surprising. I see a far higher percentage of motorcyclists being reckless than car drivers. I had a motocyclist nearly hit my front bumper as he decided to cut me up. Sticking his fingers up at me for blasting my horn...
My dad got cut up the other day, with the biker just rolling in front of him in a long queue, tried to then be funny, so he ended up being squashed out at the next roundabout, running out of road. Bit extreme by my dad, but, might make him think abit next time, if thats possible for these idiots.

And your dad sounds like a total muppet if he thinks forcing someone on two wheels out on a roundabout is 'teaching him a lesson'...shame he didn't find your old man stuck in traffic again a bit further up the road for a little chat...

Surely not going to work though, unless you happen to know the required hash for the account.