Sorry but I can't say I have any sympathy for the **** who was dicking about on top of that train mate. You only have to look at that video to see the broad cross-section of people who are on that platform and who, almost to a man and woman, are seriously pissed off and rightfully so. Ordinary people like you and me who are simply going about their daily routine, only for some fucking bellend to come along and disrupt it. I bet he wouldn't like it if the shoe was on the other foot. He deserved a slap or two IMO.