Well, last night, I surely wouldn't have guessed that Big had lost any weight. I forgot to feed them before I went to bed (I figure since they're nocturnal, maybe their metabolisms are faster then) and he made sure I knew - by STANDING on me in the bed! Can you imagine 18 or so pounds concentrated into four little one-square-inch paws planted on your hip, ribs and shoulder? I think I have bruises!