They are both dicks, the driver for going that fast in what looked like a residential area and the eejit with the rock for stooping to his level. Hell, I get tempted to throw rocks at the endless hordes of bikers that come through my village every day and sit at the crossroads revving the unholy shit out of it just for the sake of it. It's not a quiet village by any means, we have arctic lorries hurtling through 24/7 but the bikers really piss me off when they sound like a harrier jet outside my window. Speaking of jets... we also have an RAF station somewhere nearby that practises low flying so we get a lot of SREEEEEAAAOOOOOWWWWWWs but they aren't constant and annoying. Just the -blam!-ing bikers. See the south park episode for reference to them.