Foreign accent syndrome is an unusual psychological disorder which, in its milder form, causes people it affects to pronounce words in a foreign accent. The disorder usually follows a brain injury caused by non-perforating head trauma, as perforating head trauma is much too gory for a proper mental ilness. In extreme cases, victims of Foreign Accent Syndrome can actually acquire knowledge of the foreign language associated with their new accent, slang terms and humorous exaggerated versions of national stereotypes included. A victim who develops a Lithuanian accent might acquire the Lithuanian language, tell other people to "Laizhyk asilo shikna", piss on bottles of Švyturys Ekstra, and date his sister.