Sunday afternoon in the Tiergarten. A group of four shirtless guys sit on the grass, smoking pot and rolling a soccer ball in listless circles. Across the clearing, a man in a leather costume, with a mask and a long graceful tail, is pulling a two-wheeled cart. The lingerie-clad woman in the cart smacks him with the reigns and urges him to trot faster. At first, I took a small group of people...








