They don't know how hard it is to always keep everything in perfect order. They come, touch your stuff and leave their trash everywhere. And then they demand for you to find what they are looking for, in the mess they themselves made. "They" are of course your colleagues at the Research Center, the same who don't respect neither you nor your job, obviously. Now they organized this big event in YOUR library. A bunch of foreigners and ignorants will be there and will eat and drink and move things that are not supposed to be moved. Fortunately you will also be there to control that everything will be left as it was meant to be.

Workers of the Research Center