Some of that is just being a teenager and testing boundaries but the anger issue is another problem. Do you know why he would be so angry? What makes him mad? Has he had problems in his life that he has had to deal with? Many people with anger issues turn to using drugs as a form of self-medicating (my ex being one of them). Does he have a father in his life or a father figure? Most likely a boy would respond more to a male at this point in his life. So if there is a father or male role model that can bond with him and figure out what is making him so mad that would be a starting point. If you try to put him in therapy most likely he will be angry at you for that (my parents tried that when they found out I was drinking in high school and that was not a good move as far as I was concerned).
Signs to look for if he is using drugs or drinking:
1. Wants to stay over at friends houses a lot
2. Comes home late/stays up late
3. Withdrawing from school or sports
4. Red eyes (has visine)
5. Not eating or over eating/snacking
6. Mood swings
7. Smells of smoke or other perfumes and makes excuses for why he smells the way he does
8. Lying
9. Forgetful, losing or misplacing things
10. Sleeping a lot (this could also be teenage related though)
Check his room and see what you find. If he is doing drugs he will be hiding it somewhere.
I would set rules and boundaries. Curfew, no sleeping over at friends houses, home for dinner every night, etc. Make sure he is in close contact with you at all times and try to do fun things with him that he will enjoy and will help bond him to the family and you. Make him accountable for his actions. If you tip toe around him you will just be feeding the problem, especially if he has an addiction.
Talk about the dangers of drugs and unprotected sex and driving under the influence. Make sure he knows that you do not condone these things but that he can always come to you if he needs help or cannot drive home.
Just try to reign him in a bit and get the situation under control. Then try to figure out what is making him so mad. If he can be involved in the family or a part of a team it will help his self esteem. Then when you have his trust ask if he would want to talk to someone like a therapist or counselor. Leave it up to him though, he needs to be ready to make a change.
I hope things get better for you and your son!
S.