People often get even more annoyed once they step onto public transportation. It’s become the unspoken competition for the passengers to get comfortable and find the best position. That usually means being rude and unsympathetic to others if necessary.
Those who take public transportation know how incredibly rude others can be. You’re immediately uneasy when you get on the train or subway. It’s a public space, and you can’t tell if people will behave as you do or if they might be disrespectful.