Fluffy has some catnip toys and I've been careful to put them away when i'm not around to supervise because i think he could easily tear them to shreds, even though he has never destroyed any of his own toys due to being a seemingly light chewer, but Fluffy's toys are softer, less tough materials, and some have catnip inside. Just wondering if Zack were to manage to get into one when i'm not looking, whether catnip is toxic for dogs.