In 2000, I shorted a company named WEBVAN. Covered incremental amounts along the way, saved some for the doomsday scenario. It happened. After it declared BK, it went well under a penny, like .0028 or something. I went short GRPN just under ten after it broke a significant technical formation and have been covering blocks along the way. Will keep some if/when it sinks to $3 or lower or I get a doomsday scenario.