I fear that if every driver I shrugged, shook my head, or muttered at responded in this manner then I'd be doing more brawling than cycling most weeks.
I think Matthew has been a little unlucky here in that not only did the driver both see and hear him, but he was also of the character (drink fuelled or not) to take immediate offence and create a scene. I can only think the driver probably assumed that Matthew was being more offensive in what he said than he actually was, was under the influence, or is in need of some psychiatric examination.
I can't quite get into the head of the driver slamming his brakes on to remonstrate for such a minor incident. I'm prone to the odd red mist myself but I would have to be particularly het up to actually bring myself to stop the car and have an argument through the window, let alone actually going out of my way to hunt down the other party for round 2 when not even one reference was made to either party's mother. So in that case I'm guessing it's either down to alcohol, mental health, or both. I don't agree with Matthew's 'see ya' comment but given the temper of the motorist I don't think that had any bearing on how the situation escalated.
The actual corner cut itself is pretty much irrelevant. Yes it's bad driving. It's certainly not a bad incident though. I'd have probably shaken my head too in the same way I'd shake my head at an RLJ or a speeding motorist, or any other piece of bad driving or cycling, and then been surprised to get the reaction it did.
Did Matthew have to get involved? Once the brakes were on there was no going back. I don't think he could have dealt with the situation any differently to have made the resolution any better once contact was established, so credit for pedalling away with his teeth intact. I'd probably argue that once Matthew didn't stand up for himself when the guy was in his face, that's when he really went to town with the insults because he knew he was getting away with it. Most of us who are a little more mature and have a little more presence would have told him where to go once he was out of his car because being in a couple of tons of metal was the only thing that really made him dangerous.
I can't help but think that if this was an incident with another camera commuter there would be a little more sympathy. Yes Matthew has appeared to attract a disproportionate number of incidents in the past but I believe many of us could have found ourselves in this same situation given this same incident purely due to the character of the motorist.
I'd echo everyone else on here who has expressed concern for Matthew in his riding incidents to date, but I don't have any criticism for him on this occassion.