Unless that thing has a refrigeration unit that wasn't mentioned, it's a really bad idea. You can't let a frozen piece of meat sit out for hours, and then just cook it and it's ok. I used to be a meat cutter and had to do this training where they show you how fast bacteria builds up, and it's really fast. There'd be more microorganisms on that thing within a half hour of thawing than there are humans on the planet.