"Parents do not supervise, limit or monitor the student's television watching or his use of the Internet. The student may have a TV in his own room or is otherwise free without any limits to spend as much time as he likes watching violent or otherwise inappropriate shows. The student spends a great deal of time watching television rather than in activities with family or friends. Similarly, parents do not monitor computer use or Internet access. The student may know much more about computers than the parents do, and the computer may be considered off limits to the parents while the student is secretive about his computer use, which may involve violent games or Internet research on violence, weapons, or other disturbing subjects."