That's so interesting as I've recently been puzzling over Fraser's lack of interest in his frisbee. It used to be the love of his life and if I said, want to play frisbee, he'd jump up with his eyes sparkling and bounce around at the door waiting to be let out. Then he'd retrieve happily and bark at me if I didn't throw it. I used to get him to hand it to me (or teeth it to me) in exchange for a little treat. He liked nothing better than me throwing it into the lower garden where there are lots of bushes so he had to hunt it. And then he lost interest. Would still bounce up at the mention of the frisbee (more or less for old times sake, I guess), but when we got outside, he'd do a politeness retrieve and then wander off. It was quite cute actually as he'd do a retrieve with a trot back rather than racing back as if he was doing it to humour me as Mum obviously was so into the game. What a considerate pup is Fraser. Tried to interest him in retrieving a ball, but it was much the same thing. So, glad you posted this as I'd been pondering the change in attitude.