At a recent wedding, I watched a mother try to lure her little boy onto the dance floor. She invited him to dance to a slow song, and then tried again when a fast song was played. She winked and cajoled; she pretended to be sad dancing alone; she pretended she was dancing while he stood on her feet. But he wouldn’t dance. Finally she gave him one last look filled with love and sadness, then turned her attention to a little girl who was eager to join her. They twirled around the dance floor giggling in delight, never even glancing in the direction of her stubborn, grumpy little boy.