Living with a grown child

My son moved into the townhouse yesterday while I was at work. He was very proud of himself and showed me how he had rearranged the room and organized everything and it was spotless. (Gotta admit it looked real good). I was kind of wondering what happened to my son in the nearly two years since he had graduated from high school. Had he been taken over by aliens?

I came back home again about four hours later. My son's room was still spotless. But there were dishes in the sink, stuff piled all over the kitchen table, and laundry throughout the living room and kitchen. I'm no longer worried about aliens.