Especially in cold weather. A friend and some buddies once loaded a whole 6-point bull in the back of a Suburban, and got back to town late and dead-tired, so left it there. That night the temperature dropped well below zero. They couldn't budge the elk the next morning!
I majored in Animal Sci. in college. We had a meats lab that was a miniature packing house. One of the profs saw an article from another college where they killed and skinned a sheep, then propped it up in the freezer and let it freeze solid. Then they sliced it up with a bandsaw so the students could see how the muscles, bones, and organs lay in the animal. He decided to try it, too, but he used a small steer instead of a sheep. Once that steer was frozen, there was no possible way to handle it or get it on the bandsaw. He ended up having to thaw it out to move it.
