My parents' neighbors have 2 Border Collie crosses that are outside all the time, never get walked, so are in the back yard day and night. The bark almost constantly. My parents have to tell them to be quiet. When the owners are home they give these dogs no attention at all. I feel so sorry for these poor puppers. We always joke (seriously) that they're telling our dogs they want to live on our side of the fence. They would have a much better life.