I have a 2-year old Golden Retriever who seems to love chuck-it balls above all else. He plays fetch just fine when it's with other toys, as long as they're not balls, and he drops them on cue or even before I ask.
But, when it comes to his balls, he will not give them up unless I pull them out of his mouth. I've tried to use his favorite treats as a trade but apparently he prefers the ball more. When I offer the treats he will often walk away and drop the ball and then return for the treat (I don't give them when he does this).
I have made sure that when I take the ball I give it back immediately.
While an easy solution would to just not play fetch with his ball, he is often with other dogs who all love to play fetch with balls.
Anyone have any tips on dealing with a ball-possessive dog where standard treat trading doesn't work?