1933 - Germany, Adolph Hitler
1936 - Spain, Francisco Franco
1939 - Italy, Benito Mussolini
1973 - Chile, Augusto Pinochet
December 2008 - Canada, Stephen Harper (to avoid being kicked out of office and replaced by a coalition government)
December 2009 - Canada, Stephen Harper (to avoid being kicked out of office over charges of knowing about abuse/torture of Afghanistan detainees)
Evidently Stephen Harper doesn't really believe in democracy and thinks he is above it.