I have a banana ball that is a little over a year old. I gave him a large mouse. He grabbed it right away, but was having trouble getting around to the head. He let go of it from the mouth, but won't let go from around his body. I tried to get it back from him to try again, but he wasn't having it. It is in a position where he can't strike it again. How can I get it away from him without hurting him in any way? I don't want to pull on it or anything.