I Served Serial Joe a Slushie

So I was randomly flipping through channels and found upon a sort of martial arts travelogue - the narrator goes around and learns about different martial arts around the world. Anyways, she watches this one person in India, roughly 16 or so, perform a routine blindfolded. It consists of moving around until you find a knife on the ground, then moving about until you get a feel for the area and want not, until you have figured you know where the people lying on the ground are. The person then chops the fruits lying on the people in half, without touching the people themselves - all this blindfolded. Insane.