It's always a risk when you use a bike, that some bugger will find a way to nick it. I don't have the option of storing mine indoors - it either goes up steep narrow stairs, through the flat then down steep and slippery stairs out the back, or storage needs to be on the street. For myself, I'm still prepared to at least approach the council, and use the best locks that I can afford. Your message is a good reminder to double lock and cover your bike. At the very least, a request will underline to Southwark that there are plenty of people who want to use their bikes, and if nothing else, it supports their aim of making the roads more bike-friendly. And you never know, Whateley Road might get another hangar - nothing ventured, nothing gained.