These pet owners must feel like it was only yesterday when they rushed down the stairs on Christmas morning and found the puppy or kitty they wanted sitting quietly by the tree. Fast forward a few years later and these bundles of joy are now weapons of X-mas destruction. Ornaments, presents, the tree itself — if it jingles, jangles, or dangles, these pets will do whatever they can to get their paws on it. Take a look at some of the worst offenders below. Don't look into their eyes, though. Not if you want to be the one who somehow feels guilty.