Ewan McGregor in Trainspotting (1996)
You stumble tipsy into a pub/dive bar bathroom which all of Yelp, Zagat, Michelin, and even the United Nations decree to be the nastiest public bathroom in the entirety of the EU (the European Union).
Discuss your revulsion here! http://www.imdb.com/board/bd0000088/nest/227379314