Now where did I leave my bike?

A bicycle graveyard in China, picture courtesy of Luke. Apparently the enterprising locals have jumped on the bandwagon of Boris bikes but not thought through their business model, I.e. how do I make sure my bikes are not simply abandoned when the user has finished with it. End result is hundreds of abandoned bikes which the authorities simply pick up and store at places like this. They won't be returned but will most likely be scrapped and recycled. What a waste.