Sorry, got to disagree with some of you.
Do not underestimate the reflex action when someone attacks you. Especially when you are already agitated by earlier events. And don't underestimate the arrogance and hostility of someone who is indignant because someone else simply exercised their right of way rather than sacrifice their interests for others.
I recently posted a video of a moped rider who tried to overtake me on the approach to the Rotherhithe Tunnel. He failed because there was a
6 foot 6 width restriction. Simply no room for him to get through. He had no reason to be trying, and I had no reason to stop to let him go through. Yet he tried to get past. And when he failed he got angry, went through the tunnel on the wrong side of the solid line in the oncoming lane so he could whack my mirror forward, hoping to break it. Luckily it flexes forward as well as back (something I wasn't even aware of myself.)
He continued in the oncoming lane, going past me and the vehicle in front before managing to pull in. Despite there being a bend so he couldn't see if anything was approaching. He pulled in just before being hit by oncoming traffic, purely by luck.
And this is relevant because when he hit my mirror there was a reflex reaction and I steered towards him slightly. Which is why I faded the video out at that point. I know damn well how it looks, and I'm not proud of it, but it wasn't a conscious action.
Edit> I've rechecked the video. The moped rider went past not one but two vehicles in front of me, even though by that time there was a queue of oncoming traffic - who had to slam on the brakes to avoid hitting this fool on the wrong side of the narrow road.