This work is on the wall between the old fireplace and the window. He had picked up a stone from the sidewalk outside and he rubbed and scratched at the surface until some of the paint (and even some of the wall itself) came off. He calls this kind of drawing a "wall removal." Whether he makes marks by adding to the wall or scratching part of it away, with his eyes opened or closed, he is still drawing.
Trespass is part of the Mattress Factory's Permanent Collection