A man pretending to attack is controlled by students during self-defence practice in Huangtai Primary School in Jinan city, East China's Shandong province on May 30, 2013. To safeguard the student's personal safety in and out of school, the school’s security guards organized lessons for students on how to protect themselves from assault or capture. [Photo/icpress]

A student practices self-defence skill in a classroom of Huangtai Primary School in Jinan city, East China's Shandong province on May 30, 2013. [Photo/icpress]