Before I even arrived in China, I knew that the official rule was for foreigners to carry their papers at all times. But I chose instead to keep them safely at home, in fear that a crafty pickpocket would walk away with my passport instead of my wallet - a much worse outcome. Even so, not once was I asked for my passport, which makes it easy to forget that I'm living in the largest police state in history. That changed today. I got up early to walk my girlfriend to the subway station, and as soon as we got outside, I knew something was up. There were four or five police, and as soon as they saw me, they started walking towards me. They asked to see my passport, and I said it was in my room. I was told, "According to Rule XX, foreigners are required to carry their passports at all times." I said fine and turned around to head back upstairs. I was annoyed, but I had the foresight to grab my residence permit as well. When I got back outside, I started to head out of my compl...