I think I was trying to take a picture of my dirty hand. It was dirty from playing on the floor too much, but also especially from the trampoline/slide/tarpaulin thing we'd been playing cricket on earlier (read on). Sadly someone's flash washed it out and you don't get the full grime effect. Incidendally, I think those two guys in the middle were just random passengers who joined in. Not sure entirely. There were two Canadian women on their way to catch a flight to Edinburgh for the day, who were quite delighted when we told them that they might catch another party on the tube that night.