I worked in London 15+ years ago through one of those BUNAC work permits. I ended up carrying food off of trucks to the different food shops at Harrod's 6 days a week, for a miniscule wage.
I also some a half dozen shows while there. Three ska shows, the Cure at Wembley Arena, the Butthole Surfers (lost my glasses in the pit), and did I tell you the story about the blue haired girl giving us free tickets to the Pixies?