Hi, I have a dog named Tink, she's two and a half years old, and super energetic. I put aside two hours each day to play with her outside for two years. She always loved racing after the ball, or tag with a stick, but she always also welcomed other dogs to the game and played with them, putting aside the ball iif needed, too. For the past couple months she became obssesed with the ball. If I try to play other games with her - she'll grab a ball and will to play only with it. If we go outside- she'll ignore any other dogs or even become agressive if they try to play with the ball, too. If I don't bring a ball - she'll find one outside. If other humans play with her with the ball she likes it, or if there is absolutely no balls around she'll enjoy other games too - but if a ball shows up everything is forgotten. A few days ago she lost her ball at the beach, then she splashed around and ran and swam and enjoyed a lot more then the obssesive staring and grabbing the ball... What can I do to get her to play again with other dogs, and make her play or enjoy other things even if there's a ball somewhere nearby? Thank you for your time and in advance for any answer!