http://i.imgur.com/dH5hsON.webm If for whatever reason you find yourself bestowed with a bunch of around 20 corpses (happens to the best of us), and you want to bring them back to life because you're a good person, then apparently chucking them into a pile will eventually trigger them to awaken into a spasmodic, bouncing frenzy. Whether this actually brings them back to life, or whether these are in fact their final death throes triggered by contact with other bodies is uncertain, so perhaps any prospective serial killers should hold off amassing a bunch of bodies out until we know more about what it is we're seeing here...