Well, I went out to run some errands. There was a plastic bag about a foot away from his crate and somehow he managed to reach it and pull it in. There were tiny peices of plastic everywhere. It was a big mess. And judging by what was left it seems as though he may have eaten a little as well. Most of the bag was accounted for so I am not too concerned right now. Of course if he starts acting out of the ordinary its off to the vet.