Pocket Shark is a pen that doubles as a knife

Sometimes, you just need to stab a dude but you only have a pen on you. If you have the Pocket Shark, no problemo, because the Pocket Shark is a pen designed for two things: writing and stabbing. For only $7 you get this handsome writing implement and also a way to carry a weapon around with you at all times without arousing suspicion. Awesome?

Cold Steel, via Boing Boing Gadgets