You know you havnt eaten enough when.
13. Your stomach hasnt ruptured and exploded from an overfill of food intake. (i.e. Mr. Creosote - Monty Python) Video here! http://www.youtube.com/watch?v=XRkibRStjrM
14. Your ass starts to eat your underwear and anything else in sight. i.e. HBS (Hungry Bum Syndrome)
15. You dont look like this when you have finished eating.