I honestly think this is one of the most awful ways to go about it if you find out. Not only does it hurt that person (that they self harm) but just in general it tears them down. It tore me down pretty damn fast and I was ashamed of myself and I still kind of am. If you ever do find out..don’t yell at them, don’t ask a billion questions, just don’t make them super uncomfortable or make them feel awful. Just be careful about going about it.