There was something wrong with him, chase had started eating some of his fibafirst but refusing others, but still went mad for the pa and mint sticks, so knew it couldn't be anything serious otherwise he wouldn't eat them, I thought is he being crafty and wanting the treats. I've been through what he has left of Fiba first breaking them in my hands, figured it out, he has been refusing ones which weren't as crunchy and had gone soft, pt daft just like us if something's not how it should be and fresh, so ordered some more,and will feed hi the crunchy ones left