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When the intensity of a fixture becomes just too much for some people in the crowd, be it due to the rivalry between the teams on the field, hatred for a particular player or just one too many pre-match aperitifs, objects can get thrown onto the pitch.
Surely the most famous and infamous missile ever thrown onto the field of play was that which was hurled from the crowd during Real Madrid's 0-0 draw at Barcelona in 2002.
One home fan at the Nou Camp, fed up with seeing former Barca hero Luis Figo playing in the white of Real, decided to express his ire the only way he knew how—by throwing a pig's head onto the field as the Portuguese prepared to take a corner.
Such a comical missile serves to obscure the seriousness of other things such as whiskey bottles being aimed at the former World Player of the Year. But seriously, a pig's head? Incredible.