This has been my sad reality for the past few years. And, yes PokerGrumpy, OUR supplies problem extends to the restroom as well... FYI, I happen to work for an unnamed South European government... (with a small "g").
I did work at a place that had a water cooler and usually had cups. However, when the receptionist would get water for a visitor, she would get it from the kitchen sink. That's an odd way to treat a guest....
If he had come to the "institute" (research & teaching) where I worked before retirement, we would have had no water in the restroom sink. I could offer him a beaker of distilled water, of course, which I was myself drinking.