"Why are they doing that?” his mother said, frowning at her grandsons. The boys were sorting the casserole into piles on their plates. “Doing what?” Eve asked. “Why aren’t they eating their food?” “They don’t like it when things touch,” Eve said. “What things?” his mother asked. “Their food. They don’t like it when different foods touch or mix together.” “How do you serve dinner, in ice cube trays?"