隔岸观火（隔岸觀火）　

◎ 隔岸观火 gé’àn-guānhuǒ

[watch a fire from the safe haven of immunity;Fiddle while Rome is burning.] 隔岸相望火灾,比喻不关痛痒,袖手旁观

在人家有危难的时候,你是挺身而出还是隔岸观火,这也是一种严峻的考验