CCTV vs the world
I've been thinking (far too much about CCTV) recently. A couple of articles on the register (http://www.theregister.co.uk/2008/10/28/police_photography_guidance/ and http://www.theregister.co.uk/2008/08/23/camera_analysis/) come to mind. Even the Daily Mail (yuck, spit) has articles about this sort of thing.
Now, we have all those CCTV cameras, we have police CCTV vans, we have traffic wardens wearing webcams. What happens if we start photographing back? Take a picture of a CCTV camera (or a van). Post it online.
Someone else must have thought of this before.