interesting, but could it really work that way on people?
http://splodetv.com/video/wasp-knife

That knife's old news here on the forums. I've read a few threads on it I believe. It is crazy though.

That is interesting, I would like to see it up against a pig carcass

Usually a knife goes in a lot easier than in comes out,if that thing were automated to when the reverse drag got high enough when pulling it out and would discharge it would be a handy little dude.Self disengaging bayonet that turns your freshly dispatched opponent into a flotation device,lol