BEIJING—Known among schoolmates for his spirited antics and ability to make light of almost any situation, classroom jokester Wei Xiang, 11, was put to death by the Chinese government for drawing a mustache on an image of Education Minister Zhou Ji in one of his textbooks, sources reported Monday. "An enemy of the state has been dealt with accordingly," government spokesman Xu Qi said following Wei's execution by firing squad. "Let this be a lesson to other children considering wising off or otherwise wasting valuable class time." The fifth-grader previously served a six-month term in solitary confinement at Qincheng Prison after referring to the Tang Dynasty as "the Stank Dynasty" during a history lesson in 2007.