Maybe Maria IS a worker, but the mention of chains made me wonder. Perhaps she danced, and then later, because the "captains" all wanted her, Rotwang set it up...chains and all. But maybe I am REALLY off base. Besides, if I am right, this could be on the edge of violating TOS. But, I'm not the judge of TOS...and, smilling, know I could be in "left field".