Someone who doesnot care your feeling. My high school  roommate always watch movies at the night and he always laughed.The voice is so noisy.So rules always exits wherever you go.You can do this thing once or twice.This can be forgave.But you always do these things and hurt others' benefit. This is terrible.So we should be calm all the time and use rules and laws or right ways or knowledge to deal with all bad things.Wish this song can be born as soon as possible and make the world more beautiful.But if it cannot be appeared,that is nothing for me.I am always positive and optimistic.