Sounds like you were getting cased? But if it's the second time, then yeah....maybe someone is just giving out a random address to get these chicks off his back? I don't answer the door at night.....and if there is ever a reason to, I have two pit bulls and my friends Taurus and Mossburg who would be more than happy to help me out if I needed it.......
V.....if you live alone, I would highly suggest going to a reputable gun store, buying a nice little 5-shot revolver (easy to use in a panic situation) and getting a lesson or two at a local gun range on how to use it. I haven't been without a gun or three since I was 16......I don't know how you single ladies do it!