I don't know if this was part of this or not. But a couple of months ago at the house we were renting in sanibel I awoke to what I swore was the doorbell about 2 or 3am. By the time I got up and grabbed my glasses there was no one outside I could see. I'll venture to say this was the end of September..prior to us moving to our new home. Of course I didn't go out to investigate. Just looked out a few windows and up and down the street. Anyway this posting brought that to mind. But no...never open your door to anyone in the middle of the night especially if the circumstance seems odd. I would have called in a suspicious person if I had seen anyone but from my vantage points I didn't see any movement on the block. We thought maybe I heard clocks chiming and mistook it as the door bell but I never really believed that.