This afternoon, my wife, walking with our dog, passed through a parking lot when she encountered an elderly woman. The woman seemed friendly and asked about our dog as people often do, but then became very confrontational and started talking about private property. Thankfully, my wife managed to get out of the situation without it escalating.
After my wife told me what happened, I looked up this "private property". Apparently it is a form of theft or extortion (http://books.google.com/books?id=xJ9SuCMEJWQC&lpg=PA1&dq=inauthor%3A%22P.%20J.%20Proudhon%22&pg=PA1#v=onepage&q&f=false). Anyway, just thought I would remind folks to keep their guard up and watch out for these sorts of scams.