I have "trained" her to wait until she gets an "Okay" before snatching the bags. Roo was present and distracted me long enough for her the sneak in a grab one. I gave him the job of cleaning up after her. It is ONLY bags she chooses to shred. Not books, not magazines, not newspapers. She is a nut, then again it may be because the cat likes to hide in them? Hmmmm, makes sense to me now.