Bilbao fans, my favorite Iberian side, have a reputation for lefty nationalism and fearlessness in the face of Nazis. Seems one got creative, and is a Youtube sensation. Via some dopey website: "According to most newspapers, Anderlecht fans started to mess around with the Basque supporters, thus breaking the golden rule of Spanish football: You should never provoke an angry horde of Athletic fans… Some Bilbao and Anderlecht supporters invaded the pitch after the match, causing a violent riot amongst the fans, whereas other Basque fans engaged in a discussion with the Belgian visitors in the stands… two of these aficionados went a bit further, than the "usual." Sitting above the visiting fans, one of the Basques was throwing plastic cups at the opposing fans, whilst another fan decided to, literally, urinate on the Belgian fans. Some dare to call him genius, others call him simply a drunk buffoon, but everyone knows him as "el orinador" (Castelleno for "The Urinater")."