This actually happened to me in a movie theater recently.  I was sitting next to a fat, and had bought a bag of peanut M&Ms.  I would open them throughout the movie, take a few, roll it back up, and stash it in my cupholder.  The thing would actually gaze down at the bag of candy (it had polished off its popcorn and bag of Reese's Pieces off during the GD previews and first 10 minutes of the movie!!!) every damn time I would set it back down.  Savoring food, and especially stuff like candy, is just a foreign concept to them.