Reminds me of this bathroom on the ground floor (sub basement) at my HS.....It was where all the guys went to smoke, and probably the safest one for that. It was at the end of this long (200 Foot) hallway, and you could see the smoke rolling out the doorway.
Most teachers didn't bother with it, as it was so remote. If they did on rare occasions, the most they would do is to say, "Put 'em out, Boys", cause there was no way they could take 27 of us to the office all at once.