I just thought of something else. In the short time that we had Sylvia and not Harley she used to cry a lot. When I would go to work and she had to be aalone for the 2 hours until my dad came home she would cry terribly when I left. It used to break my heart. When Harley came she was to occupied to mind too much that we were leaving. I like the fact that they play all the time and keep each other company. Let's face it, sometimes animals have to be left alone. Now when the family leaves I know that Sylvia and Harley will not be lonely. And when I want to play too, they have no problems letting me into their play group!