Ludian County, Zhaotong City, Yunnan Province, August 5, 2014. Rescuers worked for 9 hours to break the concrete, and as they slowly and carefully removed the concrete roof, people were shocked by the scene in front of them: the entire floor collapsed onto the bed of Mao Shenggong, who was the son of Mao Changxue and his wife. Nobody made a sound except the devastated Mao couple, who kept shouting: “Dear son, we are so sorry!＂