Being fired from 'Two and a Half Men' is my biggest regret: Sheen

Actor Charlie Sheen recently spoke about how being fired from 'Two and a Half Men' was his "biggest regret". He said, "If I hadn't done what I had, I could be living different life right now. All my problems wouldn't be what they are." In 2011, Sheen was fired for drug-fuelled erratic behaviour and clash with show runner Chuck Lorre.