A long time ago in a place far, far away, a kindergarten class decided to do a dance for an upcoming recital. The choreographer had the little girls in a formation with the tallest in the middle, gradually tapering down to the shortest at the ends. The girls practiced for weeks and weeks and looked forward to showcasing their talent. The day of the recital arrived. It was a full house. Relatives traveled from hours away to see the kids perform. When the time came for the girls to do their dance, the teacher realized that although they had practiced many times in different rooms, they had never practiced ON STAGE. "Oh well," she figured. "They know their routine well enough. It's too late...