Shirley has to be pushed around and eats just about anything. Also useful as a trampoline, battering ram etc. She also hides food in her wool. In an episode of Shaun the Sheep, Shape Up With Shaun, Shaun puts her on a diet and for a while she is slim until she is catapulted head first into pie van. Lots of things get stuck in her wool. She is the fattest sheep in the flock.