Sir: Thanks to Bryan Appleyard for his article on racism. I recently took early retirement from social work because I could not take the nonsense of political correctness any longer. It was like leaving a cult - but even now I feel I have to be very careful in what I say in case I need a reference from my former employer. Maybe I shall go public after my 65th birthday. Meanwhile, I hope Mr Appleyard will put the knife to some of the other 'isms' that so mar the social work scene.