Porch Pirates are horrible people who deserve to be punished. I'm all for public floggings, myself. Except for this El Paso pooch .. he's too cute to flog.
There's the danger of mercury poisoning and if you were to only feed canned tuna to your cat, they wouldn't get all of the nutrients they need. This is very unhappy news for Juniper the Cat, who only has cans of tuna on her Christmas wish list.