The ex-chief executive, nicknamed "Fred the Shred", instigated the acquisition of Dutch bank ABN-Amro that placed a toxic loan timebomb at the heart of one of Scotland's oldest financial institutions. Yesterday, Mr Brown refused to say if Sir Fred should lose his knighthood. "It is not for me to talk about what action, for example the Financial Services Authority, or any other authority, takes," he said, adding: "I'm angry about what happened at the Royal Bank of Scotland."