Not a great thing to do, but not a very surprising reaction either.
It’s a bit difficult to tell what’s going on in the beginning of the video you’re about to see, but it all becomes pretty clear. The cars seen here on the streets of London belong to the members of a club called Cannonball GT, who are known for these kinds of public shows of horsepower. They’re not always all that well behaved, but we’re not sure we really blame them for the fight which breaks out not too long into the video.
It appears that the a pedestrian has decided to be a bit cheeky and lean on the hood of a Lamborghini Murcielago. Its passenger dutifully hopped out and punched the guy. A slight overreaction, perhaps. But one does wonder how anyone could think it’s OK to lean on a stranger’s car like that.