"I met your grandfather Lawrence at a dance, in Brisbane," Grandma announced. She was trying to tell him that he, Randall Lawrence Waterhouse, would not even exist had it not been for the practice of ballroom dancing. But Randy did not even know where babies came from yet and probably wouldn’t have understood even if he did. Randy straightened up, remembering his posture, and asked her a question: did this encounter in Brisbane happen when she was seven years old, or, perhaps, a little later?