Because of so many dogs, I have to continuously count them to make sure none have been left outside. From their days of abandonment when they sheltered under porches & debris, some of them hide in the house behind furniture. I have to go around shaking the chairs & tables to find them. My little fenced yard blockades against their escape but on occasion I have left one outside thinking they were hiding inside. One of the sweetest things about my dogs is that though they sometimes squabble with each other, they have formed a family with me & when one has been inadvertently left outside, they make a terrific fuss until I open the door & let the missing one in. It’s very endearing to see them care about each other.