Last night I started doing a puzzle.
This is really brave of me, because Bailey likes to steal things/eat things/attack things at random. So while I was sorting out the puzzle pieces he was sitting and watching carefully, waiting for the perfect moment to attack.
He would slowly move his paw towards the box and I would say, "Hey!" and he would pull it back. One time he got brave enough to quickly grab a puzzle piece in his mouth and then turned to run away with it, but I caught him.
My crafty way of keeping it safe while I'm gone at work is to cover it with the carpet in my room. Only, he knows it's under there, so now his only object in life is to eat away the carpet until he can get to the puzzle. So I sprayed the carpet with nasty tasting "No biting" spray. Hopefully this deters him, but I can't say I have extremely high hopes. When he wants something, he just goes for it, whether or not it will make him throw up later.