Talk about provocative art.
One New York exhibition has inspired unwanted groping, while another has prompted calls to police about possible rooftop jumpers.
The live nudes at the Museum of Modern Art want to be treated like artworks - no touching, please.
Except, of course, where they're crowding a doorway, forcing visitors to squeeze between a naked woman and a naked man.
But that doesn't mean it's OK to "grab a stranger's junk," to quote a blog at thelmagazine.com.
Some patrons have gotten overly friendly, according to performers featured in a Marina Abramovic retrospective.
One told the New York Times that an older man "proceeded to slide his hand onto my ribs and back and then touched my butt. . . . As he was passing me he looked me in the eyes and said 'You feel good, man.' "