Jimmy Fallon was at the Union Square Barnes & Noble on Thursday at a signing for his new book "Thank You Notes 2" when notorious topless activist Holly Van Voast—aka mustachioed, court-stripping "paparazzo" Harvey Van Voast—flashed him. Fallon was mostly amused by it, though he noted that she really was "milking it a little bit." Skip to 10:30 in the video below to see it go down.

"It was a little hot in here, I gotta say. Can you turn up the air conditioning, this is the type of thing that happens when you have poor air conditioning," Fallon added. "How do you top that? She did have a handlebar moustache, right?" You can see the incident from Voast's perspective below: