After a blow up with my teachers over me leaving early, which included cancelling my classes for the whole month that i had left in Japan, this is the sign one of them put on the computers. I spent the whole day on there doing emails etc. And they didnt like it. Even though that was what the principal told me to do because i didnt have anything else to do cause classes cancelled. I think it is meant to mean Dont use it for personal reasons if someone wants to use it for test making. But who really knows. And i actually think it is abit rude. Why couldnt they just talk to me about it.......rather than post a stupid sign that makes no sense.