chaps, i know what you are saying and it drives me mad too but speeding around in built up areas (i.e. 30mph zones) is not great however brilliant a driver you are - have you been on a speed awareness course? that extra 5mph makes all the difference when trying to stop in order to avoid that collision i was shown....i was naughty naughty boy.
Chris - i have had a very similar experience to yours recently, angry driver getting out of car etc etc only in my case, sadly, i think he had a point!
Dash cams? Soon we'll all have cameras embedded into our eyeballs and don't get me started on thought crime.....you'll be busted just for thinking about taking you IB out instead of doing your weekly chores.
I agree with this entirely Craig.