Maintenance worker walked to its own acts, that is, close the door and window of the classroom in all rooms. Suddenly the door a strange manner, see maintenance worker located with suspicion, so open access.
The janitor came to serve their own that is sealed every classroom. Suddenly the door was a janitor in a strange manner. Opens into view with suspicion.
The janitor walk to do his duty, that is, close the window class in every room. Suddenly, the janitor saw the strange door style is located. With suspicion, so have to look at it.