My chin ate EVERYTHING until about a month ago, he's only just matured into shredding this as opposed to eating them. Still, he is a chronic nibbler and wants to eat my base boards and the grout out of my tiles - needless to say, I watch him like a hawk if he's out and stop him before he even starts nibbling something he's not meant to. I'm not bothered about ruining my stuff, I just don't want him to digest something bad for him.