I know that my father is addicted to heroin. I doubted him first when I saw him showing a difference in behavior. He was getting rude for silliest matter. And then later I found a small packet in his cupboard in which I found this. I consulted a friend of mine who is a doctor to confirm about it. I was shattered when it was confirmed. He doesn't know that I'm aware of it. I do not how to introduce this matter to him. I'm more emotionally attached to my father than my mother. I have even found a good rehab center, Bellwood at Toronto to take him once he agrees that he is an addict. How do I ask him? I'm totally blank and scared because I've read that heroin addiction is the most dangerous out of all. I don't want to tell this to my mother because she'll totally break down.