Re: I can believe it!
There was a time, in some schools, where all printing had to be done by the admin. Who was part time. And in one I knew, the printer was in a locked room.
It was less about cost*, more about suspicion.
*Even these days some organisations make assumptions about cost instead of looking at TCO. e.g. assuming that the precious coloured toner can't be used by ordinary staff member- but the costings show it's not much more expensive for them than the black.