I come in front of the audience with naked upper body and with whip in my hand. When performance starts, nobody can enter and those who go out can not return. The view to the gallery from the outside should be prevented.  I am standing still in front of the audience till someone of the visitors don’t give up and leave the gallery. In that moment, when the door are shut from the outside, I hit my back with the whip. And for every next person who leaves the common area, I hit myself on the back with a whip. Performance lasts till I stay alone in a gallery.