The first thing he knew need to do is realize that he is then "left" with you. He wasn't asked or told what was going on. Next, you need to understand that he's angry about that and probably didn't like it when he was little he had the do what you said. Now you're the adult and telling them what to do again. Simply put its sibling rivalry to the max. You also have to understand that if he is a teenager he has raging hormones. He is probably trying to prove that he is a man and an adult. Try seeing it from his side of the street and viewing what he is doing. Then sit down and talk to him like an adult and not just your little brother. If this doesn't work then you may need to go to counseling for him. The one thing he needs to understand is that we all need rules to follow.
The administrator has disabled public write access.