The robot chair - Max Dean
Dean found it very interesting that the audience felt for the chair. If it got stuck, "everyone is getting frustrated. But the machine isn't getting frustrated, we're projecting our own frustration into the chair."  Much like Norm White's Helpless Robot, the audience is engaged in unexpected ways when they personify the interactive object, also a kind of robot.
1. Enright, Robert. The Certainity of Machines:Interview with Max Dean. Border Crossings 26 no1 24-37 Mr 2007.