I toss the rats after the first denial but I was just wondering if there is a max time you can keep the rats in the freezer after you buy them. Do they get frostbite and go bad like some foods do if you keep them in the freezer for too long? I'm curious about this because after I thaw the rats out for feedings, they smell absolutely terrible, just wondering if that is due to being kept in the freezer too long or if its just because dead rats smell like hell lol.