Raphael Geys, a former managing director of Societe Generale's fixed income sales in London, leaves the Supreme Court in central London October 17, 2012. A senior banker, who says he was fired for being too successful, is taking his 12.5 million euro-plus ($16 million) lawsuit against France's Societe Generale to the UK's highest court in a case that could re-draft employment law. Geys, a Belgian national and a former managing director of SocGen's European fixed income sales in London, is suing for breach of contract after France's second-largest bank summarily fired him in 2007 without paying his full severance package. REUTERS/Andrew Winning (BRITAIN - Tags: BUSINESS EMPLOYMENT CRIME LAW)