Audience-participatory theater scandalized European festivals and got performances banned.

Evidence

These gave way to angry injunctions (“If I could drive you out of your wretched mind!”) as well as various prayers, yoga exercises, a mass embrace (known as “The Rite of Universal Intercourse”), instances of possession and exorcism, an orgy of animal madness, and finally a call to leave the theater and go out into the street. The Permanent Revolution: Change! Lasting over four hours, the piece called for and depended on the audience’s participation. Every performance was different. The premiere created a scandal at the Avignon Theater Festival and, after Le Living was prevented from performing it a second time, resulted in their withdrawal from the festival. — J. Hoberman, Everything Is Now, 1293