坐山觀虎鬥 [ㄗㄨㄛˋ ㄕㄢ ㄍㄨㄢ ㄏㄨˇ ㄉㄡˋ; zuo4 shan1 guan1 hu3 dou4] sit on the mountain and watch the tigers fight watch in safety whilst others fight then reap the rewards when both sides are exhausted (idiom) ◄ ►