There are 4 types of drunks. Researchers who studied our drunk and sober selves found that we fall into 1 of 4 categories when drinking: the Hemingway, who has the same personality whether sober or drunk, the Mary Poppins, who goes from sweet and happy to even more outgoing and loving, the Nutty Professor, a quiet introvert who becomes an uninhibited attention-lover, or the Mr. Hyde, who suddenly turns hostile and irresponsible. Source Source 2 Source 3