The next day. When Deng Jiazhe got up, he kept kneading and rolling his neck, looking uncomfortable. I asked deliberately, "What's wrong? You keep rolling your neck." Of course, I knew exactly what was wrong. I remembered just how much force I’d used when I shoved his head away last night. "Slept on it wrong! Haven't had such a refreshing sleep in ages!" Deng Jiazhe said, still working the kinks o