When you are on the train/subway.. do you ever bump into people by accident? I feel this is a natural thing: the train moves, sways and stop short sometimes - what can you do? Usually when someone bumps into me, I don't even look up. And then I feel bad when I hear them apologize because I haven't even acknowledged that they exist. Do they feel silly apologizing to someone who hasn't really noticed they exist? Do they think me a bad person? What are my options at that point, though: to suddenly pay attention to the person and nod that it's ok? All I really want to do is read my book and not be bothered. An even more aweful aspect of my personality is that sometimes when I bump into people, I don't apologize. I don't even acknowledge I did it. Sometimes, I'm just not in the mood and I think everyone else should just understand that the bumping is just part of the ride. Am I a bad person?