Why the Heck Is This Guy Using a Sheep As a Dialysis Machine?Casey Chan5/04/11 12:40am59EditPromoteDismissUndismissHideGo to permalinkPETA and PETA loving people, chill. It's not real. Well, the animals could be real but the sheep isn't really being used as a dialysis machine. Okay. The man and sheep setup is actually part of an art piece by Revital Cohen called 'Life Support'. It examines whether we could use animals as medical devices.