If the door is locked, how are the kids going to be able to enter at all? They're gonna jump a custodian and get a key...they're the kind of students who can pick locks...they have their own set of keys but shouldn't use them (thus defeating the reason they might have a key) (but kids don't get keys...)?
Come on, I'm wondering how this sign makes any sense - at all. I have to walk by this at least two times a day. I'm about ready to tear it down it's so conundrumtious to me.