This morning I sat beside a young man on the train. He was asleep, or half asleep, his upper body listing from side to side. Occasionally his head landed on my shoulder. I shrugged it away a couple of times, but thought: he’s just a tired person on the train. Let him touch you. It doesn’t matter. But it was hard not to reject the intrusion into my space. I pushed him away more gently the next time. He never did open his eyes. Then the seat on the other side opened and I slid over. I looked back at the man and he was now slowly waking up.