Colm Keaveney  photographed outside the Dáil after he voted against  controversial Social Welfare cuts in December 2012.  He was  the fifth TD at the time to leave the Labour Party parlimentary party since the coalition with Fine Gael was formed. Photograph: Brenda Fitzsimons/The Irish Times.

When he made the fateful decision to vote against his own party in a Budget Colm Keaveney used a Latin phrase: “Alea iacta est”.Its meaning is the the(...)