As I said last week when I answsered the is post the house has been quiet for several weeks.
This morning I heard one of my roomates walking down the hallway and talking. No big issues with that, people come and go as we all have different schedules. I was the only one home yesterday when I got back from my weekend in Houston.
It was time to get up anyway so I got up, and went downstairs to turn the coffee on, and see who's car was outside. Nobody's car was outside or in the garage. I was still home alone.
Not the first time I thought somebody had come home, but find the house empty.