Narcissists , sociopaths, and psychopaths often have co-morbidities such as addiction, and one of the most common is drug addiction. They love to push boundaries, break rules, and make their own code to live by. Hallucinogens are a popular accompaniment to anti-social personality disorder. If that weren't enough, they also live in a delusional world of illusion, projection, and deflecting that cause them to lose touch with reality and indulge in a false self that is only real to them.
