Gong Zudong, a 62-year-old cleaner, his wife and son (L) are displaying the certificates of honor that Gong has received in the past 14 years ever since he became the only cleaner in the Chenping township, Nanning, South China’s Guangxi Zhuang autonomous region. Gong's wife complained that her family has been estranged from relatives because Gong was always too busy cleaning the streets instead of visiting during festivals because that is the time when residents produce the most garbage. [Photo/Xinhua]