John Fallon over at Arrowinthehead pointed us in the direction of a hilarious short film online entitled Kabumei: The Art of the Sharpened Grenade. Directed by Bob Forward, the 5-minute shirt is a brief look at one of the least known (but arguably most effective) ancient forms of Chinese martial arts. You want blood? You’re going to get it. You want laughs? You’re going to get even more. Check it out and wear a trenchcoat.