I came out of the tube about 1.45 and some rather foul mouthed blokes caught my eye. They were shouting about meeting up in a pub later and as they walked down towards Trafalgar Square they started a football style chant. I couldn't make out what they were saying at first. Then I saw the banners in the square and someone letting off a blue flare. They had taken over most of the square at that point. When I came through at 5.30 ish, the helicopter was up, the tube had been closed, traffic was stuck, there was an open top Megabus stuck in the middle of the throng with people standing on it's roof. I don't know what happened to the hapless tourists who had been on it. A line of police horses were ready and some of the idiots were doing their best to scare the horses. One bloke stood in front of a row of tourists and screamed "I`m English". I think he was pretty drunk. I think many of them were actually. The amount of beer cans thrown around in the street were testament to that. I watched it all for a while as I had to walk around the edge of it to get back to Waterloo. It was disgraceful.