The last time I thought I deserved a "treat" I had just climbed a mountain. I mean, I burned around 3k calories doing that (carrying a 10-15lb pack, going for about 7 hours), so I ate about 2k worth of a cheeseburger and fries. I don't think fats do that sort of thing though. That was also back in August or September.  Point being: fats eat treats they don't deserve.