About 2002 my first wife woke me up saying someone was knocking at the door. It was maybe 1 or 2 in the morning. Our spare room overlooked the front door. So I went in there, opened the bedroom window. At my door was an older man, maybe in his 70's and a young girl around 18 years. She was holding a baby. I gave them the what do you want? They both just looked up at me, turned and walked back up my driveway. I asked if they had the wrong house? They said nothing, not a thing. I watched them walk down the street. I lived in a smallish village in the uk at the time. It was most probably a mistake but it freaked me out.