The fox, the horse and the lion

This is an obscure fairy tale written down in 1812 by Jacob Grimm about an old horse that had been cast out by a farmer and told not to come back unless it proves itself useful again. The horse met a fox that told him to pretend to be dead, and when the local sheep eating lion came by, the fox convinced the lion to be tied to the horse's tail by his paws to make it easier to drag the enormous fresh meal back to his family. When the lion is tied by the fox to the horse's tail, the horse takes off galloping, dragging the lion behind it back to the farmer. The horse is then treated like a hero by the same mean farmer who thought he was worthless.