Czech sculptor David Cerny has seriously upset national sensitivities in Europe with a hoax artwork hung in Brussels and commissioned to mark the Czech Republic’s EU presidency.Tweaking stereotypes, this was supposed to be a common work of artists from all the EU states. Euronews was among those who fell for it. Cerny has admitted he did it with a couple of friends, made up a bunch of names, and then waited to see if Europe could laugh at itself. Sofia is not laughing. The art installation named ‘Entropa’ represents Bulgaria with several figures urinating. The Bulgarians made an official complaint. Prague says it will announce what to do with the offending object tomorrow. That leaves a little more time for passers by in the heart of EU institutional territory to test their sense of humour. The Netherlands is shown as under water, with only minarets breaking the surface.