http://en.wikipedia.org/wiki/Mantis_shrimp They are the guys with the fastest punch in the animal kingdom: Although it happens rarely, some larger species of mantis shrimp are capable of breaking through aquarium glass with a single strike from this weapon. They are much tastier than your average shrimp. I went to a buffet in China where they were live. You put them in a bowl, put a lid on it, and boiled them at your table. -Can't beat that for fresh. http://geniuscook.com/how-to-cook-simmered-mantis-shrimp-red...
I saw one that a local fish store had captured successfully. It had kicked hard enough that the guy needed stitches to his finger. They're mean little fuckers. http://www.youtube.com/watch?v=ezRCQZgVEec&feature=chann... And apparently quite common off the california coast. The fact that they aren't harvested says a lot about the difficulty...
Ah. tWas a comment: http://hubski.com/pub?id=2656