My hamster Toffee, really loves chewing things, especially cardboard, like, REALLY loves to chew cardboard. I give her wood chews, dog biscuits, whimseys chews and lots of cardboard, corrogated and toilet tubes most of the time. But I recently decided to give her an entire section of her detolf cage for sand for her to enjoy and i used cardboard to separate the bedding and sand areas. But she keept destroying the barrier and creating a huge mess so today I moved the sand to the other end of the cage and made the barrier 3 pieces of cardboard thick. I give her plenty of chews and attention but she STILL chews at the cardboard barrier!! It's only a matter of time before she destroys this one too so i was wondering if there was any way to deter her from chewing at it. Any ideas??