For the last four years I lived alone in a small house. The ceiling of one room had collapsed, and plaster dust was everywhere, coating the garbage and newspapers that littered the floor. Empty food cartons, beer cans, bottles, and dirty clothes lay where they were tossed. I had gotten a cat because the mice were out of control. But I was not conscientious about cleaning up after the cat. It is not surprising that I had few visitors and neighbors tended to avoid me.