Only four months ago Hong Kong’s chief executive election looked a neat circus act. Two dancing bears, Henry Tang and CY Leung, enter the ring and begin their routines. The two check regularly with the ringmaster for approval. A third bear, Albert Ho, untrained but securely chained, is allowed in to add drama. The audience knows the story. The act is predictable but vaguely entertaining, like familiar Cantonese opera. The hero known by all beforehand, will emerge victorious from the noise and distraction.