Chinese Idiom And Its Story- Fix One’s Fence After Losing Sheep

Once upon a time, a man raises lots of sheep. One morning, he finds one sheep is lost. He checks carefully about his fence and finds a hole, it is obviously that the sheep was taken away by a wolf. His neighbor advises him: try to fix the fence as soon as possible. The man thinks, well, since the sheep has been lost, there is no use to fix the fence now. So he turns dead ears to other’s advice. On the second morning, he finds another sheep is lost.