I didnt have any other rats in the freezer so I am running to the store in the morning and going to try and feed him then. I usually feed him at night so hopefully he will eat for me during the day. I didnt think I warmed it too quick. The rat was in a plastic baggy and I had it in hot water... not like too hot I couldnt touch it. And then I let it set for about 10 mins until he was soft all the way through. It was a gross experience though and the smell... yuck!