My 13 month old will not share toys with any dog. She is high drive and would literally jump off a cliff for her ball
. Her drive is great when we are training, but when we are playing ball around other dogs her possession of the ball/toy becomes a problem. She hasn't actually fought over a toy yet, but she lets out the deepest, scariest growl ever if a dog tries to get her ball. No dog has even thought about challenging her when she does this. She also does this if a dog gets near her crate, even dogs she knows and loves. Do you think I should correct these issues? If so, how? Thanks so much!