Last week I tried to visit my local DVD store only to discover it under construction. It looked like they were building more shelves to house their vast stock. Today I discovered the purpose of the shelves. They’re a false wall. I walk into the place and discover it is now a quarter of its former size and only stocks Chinese movies. But then an assistant beckons to me as she pushes on one of the shelves. It opens to reveal the rest of the store with all the regular stock.