This reminds me of a story my grandmother used to tell us about one of my cousins. They'd had hamburgers for dinner one night. He struggled with finishing his but finally got it done. He took a shower and went through his whole bedtime routine and went to bed. The next morning, when he was sitting at the table waiting for breakfast she noticed he was chewing so she asked what it was that he was eating instead of waiting for breakfast. She was getting upset because he was ruining his appetite and that had been part of his problem the night before. He opened his mouth and showed her that it was his literal last bite of burger from the night before. He had slept with it in his mouth.