I must admit, I do have a friend who I believe is psychologically addicted to the sauce. He is on his own HRT because he believes his test levels are too low, when his doctor wouldn't prescribe it because of his young age. He began using at 18 or so, and has a fear of losing size. It's more of an addiction to just being big I guess you'd say. The only way he can surpress this fear, is with steroids because he believes he's too small without them.
This part of it is what's a little gray for me. I've read that testosterone can have that type of effect on the brain for some people. But I believe there's still too much up in the air to know for sure.
The same friend of mine also has prostate issues. He's not even 25 years old yet. These surfaced once he started using steroids on a regular basis.

He's been put on some sort of inflamed prostate medicine, but there has to be the thought of cancer possibilities in the future; being the prostate is already cancer-prone. Now, he is the first and only person I've known to have prostate problems with steroid use, so maybe he had a predisposition to prostate problems, and anything unnatural in his body(booze, drugs) would have caused these problems. But, if I was using, and began experiencing prostate problems, that would definetly be a sign for me to quit. Guess with him, it goes back to the psychological pull.