When I caught wild mice in the house I'd house them in a 20 long tank until release about 10 miles away from our house, in the woods. While stuck in a tank, I gave them wheels and they used it constantly. It was hilarious. They would get so hyper on it that they were not able to stop it from spinning, and would hang on to it, going around and around.
In one release, I actually had to pick up two males to get them off the wheel and onto the ground. Either they were too scared to run, or they didn't want to leave the wheel behind.
