Why the hell is a dismembered pair of legs walking around willy nilly with a shopping cart? I'll tell you why…To draw awareness to homeless people, and the cutthroat world of cart-pushing. It was designed in 1993 by a college student who thought the concept of using robots for hazardous jobs could be applied to the most dangerous job of all, being homeless. The student rigged the cart together using a bunch of bike chains and a couple car batteries. We're not sure it serves any practical purpose—might be better if there were hands to put things in the cart. One thing the artist definitely got wrong though: homeless people do not spontaneously burst into flames. At least not in New York, they don't. [GizmoGarden via Make]