I knew a kid when I went shopping with my mother in a mall. He was picking something in the rubbish cans near the mall. He was nearly of the same age with me. He told me that no one care about him when he was at home. His mother died and his father remarried so he has a stepmother who disliked him and often beat him. To him, home was just like a hell.So he began to play truant and then at last he left his home. He preferred living freely wth rubbish. What a poor kid he is!