Oh, so now you want to be a literalist? Haha. It's implicit.
You make it sound like you don't have a problem with drugs at all, then later you agree to having a problem with drug misuse. You of all people should know how important it is to be specific when you start a discussion like this. How am I supposed to know that drug misuse is an obvious exception? Some people think that drug misuse is only the misuser's business, and no one elses, and they have no problem with it. For all I knew after reading your first post, that could have been your stance.