Stuck on the tube today. Trying to breathe inside the the equivalent of a human straw. The driver apologetically announced that we have to 'de-train' - London underground jargon for emptying a train of its hot and sweaty passengers onto rat infested tracks and walking for half a mile till the station. Morning rush hour and people are hot and nervous. Is it another bomb attack is it something equally sinister? No, just bits fell off the train ahead causing our train to get stuck for two hours. The bonding started promptly with people in the dark heat of the carriage cracking jokes and it became almost a funathon. The best jokers collected mini team mates and pretty soon everyone was laughing creating an ironic atmosphere. It was a brilliant example of how humour certainly binds, diffuses and makes people stick together even if they are stuck inside a human straw.