I go to school in a school for green peacers. Last year when my language arts class were out trying to find something to write a poem about, my teacher told the class, "Do not pick up sticks or stones, or anything that is naturally there in the first place because it will disturb nature." Another downside to being in a school full of green peacers is that they don't use anything that actually cleans something. They make us wash our hands with Vinegar!!