Lock Out!

Well, I went to go check on my classroom this morning. (some winter teaching)
I could see through the window that there was a chalkboard (I hate dry erase) but no chalk
and no eraser. Oh -- and the doors were locked.
So I hunted down maintenance bob to unlock them. Turns out the eraser was just somewhere I couldn't see and there was a piece of chalk hidden in the desk. So I went to get some more chalk. The only chalk in the supply cabinet was multi-colored. All well and good until you try to erase it! The stuff bears a grudge.
I've since sent two more people to seek maintenance bob. I'm sure maintenance bob is appreciating the increase in visitors and business since everyone else in his domain threw up their hands and said "I don't know nothin about it!" when I asked if anyone had a key to the classroom. C'mon. Maintenance man with a belly and beard doesn't know nothin about classroom keys?