In a freewheeling conversation that featured both nudity and urination, the collective known as Gelitin, which consists of four Austrian artists named Wolfgang Gantner, Florian Reither, Ali Janka, and Tobias Urban, took time out from their latest project to discuss their illustrious and outrageous career. It’s a history that is rooted in the idea of collaboration, not only between the four men, who first met at a summer camp in 1978, but also between the art they create and the audience that is encouraged to interact with it. And in doing so, transform the pieces in ways even the artists couldn’t have imagined.