Hi! So I'm a little worried about my dog. She will grab her golf ball and sit by the door. So I'll let her out and she'll start poking at her golf ball. I'll pick it up and throw it for her. And we'll start a get of fetch. But she can't stop herself so once she looks a bit worn out I'll stop and leave to go inside. But she won't go inside and just keeps on poking at her golf ball. But eventually she'll come in. Then after that she'll sit with her ball right next to her and sometimes she'll even bark at the other dogs to protect from the other dogs. I don't what to do as she seems positively obsessed over her ball. But likes to play fetch also, any suggestions?