狗急跳墙（狗急跳牆）　

◎ 狗急跳墙 gǒují-tiàoqiáng

[A cornered beast will do sth.;Just as a dog will leap over a wall in desperation.] 把狗惹急了,能跳越高墙。比喻坏人穷途末路时不计后果,铤而走险

困兽犹斗,敌人在濒临灭亡的时候,会狗急跳墙的,我们要加倍提高警惕