Trust me man, I was the one who was always blamed at school for anything that went wrong. Just keep your nose clean your senior year and get your kicks elsewhere, I know it's tough when your bored and the comp is sitting right there. But it aint worth it when you get caught, and believe me you will. If not by teachers, then by kids ratting you out. Don't take chances ESPECIALLY your senior year, unless you feel like another year of high school is what you feel like doing.