[亡羊补牢 / 亡羊補牢, wáng yáng bǔ láo, ㄨㄤˊ ㄧㄤˊ ㄅㄨˇ ㄌㄠˊ]lit. to mend the pen after the sheep are lost (成语 saw); fig. to take action too late; to lock the stable door after the horse has bolted#42655[Add to Longdo]
[放马后炮 / 放馬後炮, fàng mǎ hòu pào, ㄈㄤˋ ㄇㄚˇ ㄏㄡˋ ㄆㄠˋ]running only after the horse has bolted (成语 saw); action taken too late to be effective#167579[Add to Longdo]
[へをひってしりつぼめ, hewohitteshiritsubome](exp) there's no point squeezing your buttocks after you have farted; no use shutting the stable door after the horse has bolted[Add to Longdo]