when I heard a knock at the door, I went to answer it and saw a woman in a green jacket standing outside. She said she was a member of a charity organization and was collecting money for poor people I asked her the name of the organization and she gave it to me. I didn't recognize the name. She seemed very pleasant person and we talked for a long time. She said she liked helping other people. I decided to give her some money and left the living room to look for my purse in the bedroom. I was out of the room for a couple of minutes. When I came back , the woman had gone. The window was open. I looked out. There was no sign of the woman, but the green jacket was on the grass. What a strange thing!