David Keyes, executive director of a group called “Advancing Human Rights” is at it again. This time in Vienna.

Keyes, who has previously punked the Iranian Foreign Minister Javad Zarif in New York, and threw a gay party at National Harbor during a Saudi fair to protest the Saudi government’s treatment of gays, this time took his unique brand of protest to Iranian and U.S. diplomats as time is winding down on a controversial nuclear agreement.