This is a good idea of a parody poster to put next to it.  "Hey Junkies, lets kick off Heroin acceptance week by learning how to enjoy each gram and talk about ourselves in ways that allows us to continue with this lifestyle. We will shoot up some Heroin and watch Trainspotting while nodding off...." Put a photo showing someone warming up the heroin in a spoon. Then a photo of a junkie's arm tied up for injecting.