I have a younger brother, but I don't like to acknowledge him. He's the kind of person who has no real problem lying to someone's face, even family, and has basically been using my father's death 5 years ago to excuse his drug use (His use goes beyond recreational... it's to the point where he has alienated most of his friends... this use even got him kicked out of his best friend's house a month after he got kicked out of home)
I'm having a hard time with my brother right now, as he's teaching me that it's useless to care and help him, as I always end up getting used...