There are many people who believe that farming exotics to provide a legal and controlled source of these potion fillers would relieve the strain on these animals. I believe it is impossible to tell legal rhino horn from illegal rhino horn. Track down these banditos and give them a taste of their own medicine. As to the witch doctors who need this ill gotten loot. They must be driven out of business by any and all means. You can't be nice to these bastards.