eldavojohn writes: Sixteen year old Deng Senshan was tragically beaten to death by three of his instructors in an internet addiction camp in the Guangxi Zhuang Autonomous Region of China. Reportedly it was for not being able to run fast enough. An article in the Wall Street Journal also says that, 'China's netizens have played a key role in drawing nationwide attention to recent cases of deaths in prisons and detention centers, so it should be no surprise that they are up in arms over the fate of one of their own. Many questioned the fairly new diagnosis of "Internet addiction" as a mental disorder.' Although it is difficult to find reliable sources reporting other deaths prior to Senshan. You may recall electroshock treatment being banned from use on internet addicts in China. According to Xinhua, more than 100 juveniles remain being 'treated' in the camp as it stays open. Perhaps for Senshan it would have been better to endure his cruel affliction instead of having his parents pay over $1,000 to be beaten to death?
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"