Re: Grzegorz Brzeczyszczykiewicz
Well, actually it is more of a pseudonym than a fake name - it's from a famous Polish film called 'How I unleashed WW II'. The main protagonist uses 'Grzegorz Brzęczyszczykiewicz' as name when caught by the Germans and registering it takes so much time that this saves him. So, yes, it is not a real name, but a well-chosen one given the context.