The odd one out is the House of Prime Rib story. Because it's the only story where they actually pig out on food that's actually (I assume) good -- food that you don't necessarily get every day. This story could have (more or less) been told by a thin person, because eating too much of food that actually tastes good once in a while is perfectly understandable.  The others are about fatties gorging themselves on ridiculous quantities of shit food that you can get at any fucking supermarket for a couple of bucks.