A documentary chronicling the life of Richard Davis, the man who invented the concealable bulletproof vest - shooting himself over 200 times in the course of his career to prove the effectiveness of his vests. 　　译文(2): 这部纪录片记录了理查德?戴维斯(Richard Davis)的一生。戴维斯发明了隐藏式防弹背心，在其职业生涯中，他向自己开了200多枪，以证明自己的防弹背心是有效的。