oh - i meant to mention that you can use high carb canned food instead of the dry food. If you have to leave for work like you did yesterday, you can just put out a can of high carb. It *shouldn't* last as long in his body as the dry food will, but it *should* bring him up just fine. You might experiment with it on a day when you're home to see if it would be a good substitute for the dry food.