Thank you all for your input. The rat was in a bag but it did get wet. I figured it was normal but it makes sense that it would be gross if it was wet. It was two days after feeding him a live that I tried with the frozen, I will make one more attempt in a week and let it thaw at room temp. If he doesn't take it then I will go back to live. The only reason I would still consider frozen is because to get live I have to drive an hour to get them, and petsmart is two blocks away. Thanks again everyone.