泥棒を捕らえて縄を綯う
1
starting something in the eleventh hour;have not thy cloak to make when it begins to rain;don't lock the stable door after the horse has been stolen;braiding the rope only after the thief is caught
Other forms
泥棒を捕らえて縄をなう 【どろぼうをとらえてなわをなう】