Disrespectful
Most commuters are rude to others and prefer to store their belongings in other open rooms, even though this ensures that other passengers would be unable to rest. Some people also play their music so loudly that all can hear it of the travelers.
Selfish Passengers
Things like placing your legs on an empty seat are much worse than putting your luggage on an open seat! And if anyone politely requests that you lift your legs so that they can sit down and you refuse, that is simply unethical, rude, and should not be tolerated!