Sort of a follow-up question...say I thaw out a frozen rat and try to feed it to him, but he doesn't want it. How many times can it be re-frozen and re-thawed before it would be considered inedible? The one I threw out last night was thawed out for almost 12 hours so I knew that one couldn't be re-frozen, but in a situation where its just finished thawing and then refrozen 10 minutes later. Not sure if there is any sort of "rule of thumb" on this sort of thing.