My son(8) was devastated at a special on Animal Planet about elephant ivory and rhino horn poaching. He couldn't believe we were losing that battle. We are both big fans of rhinos. He asked why we couldn't just create an autonomous defender that would live with the animals. Now his instinct was that the animal life was more valuable than the poacher life but I don't think we would go as far as hurting the poacher like his first ideas but this is my place holder for a fantastic idea to be brought to life in the near future.