It was the middle of winter, and when it is, the train is usually freezing cold, and I always wish I wore more layers. I get on the train on the first stop so I almost always get a seat, even in peak hour. A few stops into the journey, a man ran onto the train just before the doors closed and once he was on, he stood squashed next to everyone else standing. He was breathing very heavily, clearly out of the breath and sweat dripping from his forehead and all down his face into the collar of his white work shirt. The juxtaposition was interesting between him sweating profusely, clearly in a lot of discomfort, and with the rest of the passengers shivering and in multiple layers.