My dogs are pretty good about only chewing on their stuff--Abbey sneaks a shoe when she can, but she doesn't really chew on it, just moves it to the other side of the room. Kito used to chew up coasters, but not anymore. One of them (don't know which one) chewed up a remote last week--they were all in the same room, and we weren't home--I forgot to close the door to the pen, and that's how Abbey and Riley got out. I'm guessing it was one of them, since Kito is always in the room, and has never touched it. Oh, and yesterday morning Riley got ahold of my glasses (I think he's the mad chewer!!!!!)