鷸蚌相爭，漁翁得利

- If a snipe and a clam are locked in fight, it is only to the advantage of the fisherman.; As neither the snipe nor the mussel would give way in fighting, a fisherman came and caught them both.; If two parties fight, a third party will benefit.; Two dogs strive for a bone and the third one runs away with it.; When the snipe and the clam grapple, it is the fisherman who profits.; While an oyster and a kingfisher were engaged in a bitter tussle, a fisherman came along and carried them both off (into captivity).