I got a f/t mouse there, thawed it, and it turned out almost completely decapitated. I think I even made a thread about it, though I never took pictures. No, it wasn't a box cutter cutting in. The mouse was in a sealed bag in a perfect box, but the mouse was very nearly headless. That alone has put me off buying frozen feeders from petsmart except in dire need. (Not to mention the cost - $6 for a small rat? I can get two live small rats for that much!)