We recently suggested that the best thing to do if you fall onto subway tracks is to run away. But let's say you fall, unconscious, onto those tracks, as this woman did in Madrid earlier this week — well, your only hope is that an off-duty policeman is brave enough to leap into the path of an oncoming train and drag you to safety. As this officer, Ruben, did. (Ruben, by the way, is a good person to have around — last year he saved a four-year-old from drowning in a lake.) [Telemadrid]