Honestly I don't know what todo I'm so disappointed. My dog was doing absolutely great with force fetch his gums are red and if I even touch his bottom teeth he jerks away or if I touch the bottom I his chin he jerks away. We're forcing to pile and he's even doing great with it. He ALWAYS delivers to hand never drops it and all of a sudden today he kept dropping the bumper at my feet I'd eat pinch and say fetch and HOLD but he won't hold it or long he just lets it slowly slowly slip further out of his mouth and then he drops it and then we repeat. Guys please help should I hold off on it for awhile and see what I an do about his gums or is that even it.