You’re referring to our ‘Rogues Gallery’ project in which we took our GraffitiWriter robot to public spaces across the United States and Europe and offered it for use by the general public. One of the things that was so interesting about this project was that so many people were wiling to participate! We’d simply show up unannounced in a public park or city center, drive the robot around, and invite people to use the machine to spray paint messages on the ground. Virtually everyone we encountered was willing to give it a try, even though what we were doing was clearly illegal. To us, this seemed to be an interesting inversion of the usual narratives about technology extending human abilities. With Rogues Gallery, the robot overcame certain kinds of social conditioning not because of its mechanical capabilities but simply because it was seen as legitimate, based on the assumption that anyone possessing a robot represented some large research institution which probably had the ‘right’ to spray its messages on public space, rather than simply being a couple of crazy people who built a machine in their garage. Imagine if we had tried the same experiment without a robot, using only a few cans of spray paint – no one would have participated because the action would have been clearly understood as an illegal act of public defacement.