I have a friend who has anger management problems. She is the kind of person who is very kind and nice but once something gets her angry you can not believe it's the girl you knew. She utters any word that will come to her mind, breaks, things and to some extent even threatening to kill. Being a friend I have tried working her through anger control, even setting her up with a psychiatrist but it's all in vain. What anger management techniques would you recommend?