Hooliganism refers to unruly and destructive behaviour. Such behaviour's commonly associated with sports fans, particularly supporters of professional football and university sports. In some countries, the hooligan elements of a group of supporters are known as Category C. The term can also apply to general rowdy behaviour and vandalism, often under the influence of alcohol or drugs. Etymology There're several theories about the origin of the word hooliganism. The Oxford English Dictionary stat… (More on Hooliganism)