Fan Wubiao and Zhang Hao, both 18 years old and later accompanied by Gu Taowei, come from Fenyang city in the Anhui province. They came to Beijing not so long ago; one of the boys has a relative living in Beijing. They work as security guards of a building materials market. They sit and have a rest in abandoned chairs that were removed from a car. They are quite shy and continue to laugh to each other when we ask questions and take photos.