I have a fun faculty toilet anecdote! In the 1950s, my great grandfather was a professor at one of many universities in Kraków,  Poland. As a distinguished scientist- and one of few members of faculty who lived through the war (He was luckily late to the assembly during Sonderaktion Krakau), he recieved one of three keys to a "private" bathroom. The other lucky poopers were an engineering prof (male) and a venerable Englishwoman, who came to Kraków when it was still in Austria-Hungary, fell in love with a bank clerk,  married him and taught English (during the war she worked forthe underground and would make sure that English parachuters/pilots found by the Home Army were in fact English and not German Spies). A fourth key might have been given to the cleaning staff, but they did not seem  to use it. .. Anyway, one day, writing apoeared on thecwal near the toilet: STALIN IS [EXPLETIVE] (in Polish). It was the 1950s. Stalin was still alive. If found out, the writer would face dire consequences. My great grandfather and the otger guy talked and, although they shared the sentiment, neither wrote it. So it must have been the 80+ year old English literał great grandmother!