That, I would definitely want to see
Yeah! Kind of reminds me of Yves Klein's performance: http://zeynepkinli.wordpress.com/2009/05/15/825/Except doing it exclusively with the butt would make it just that much more comical!
Haha! But how does he do it? I guess he would have to have the canvas on the floor or otherwise somehow steady it with something.....oh never mind!