I have this EXACT same problem with wobbles. We just moved recently, and her habit of chewing on and eating bags moved with her. She isn't bored; we play with her constantly, and she stays in our bedroom with us. (we live with my mother, and spend 99% of our time in the bedroom, and Nathan doesn't work, so there's usually someone here).

They're on Nutro Complete, the really expensive premium food, so the diet isn't the problem. (Ours don't, and won't, get wet food. If we give it to them, they won't eat the dry for weeks, even if we give them nothing else)

There's a bag in our room full of clothes...she's completely torn off one corner! She'll sit there, chew on the bag, and DARE us to stop her. Of course, we do. She's a little stinker. Any other suggestions?