"Your attitude is exactly how you shouldn't act in this kind of place, soon when you're older, people are gonna hate you because they can't excuse the way you act and you won't be able to get a damn job. I invade your conversations because you are being rude to the person who helps in this f__king class. and you can't be rude to someone and expect respect. This world is more tough than you, you got that? do you, cabrón?!"
Oh how i wish to say this to this jerkwad.