‘There is only one thing worse than homosexual art,’ the painter Patrick Procktor was once heard to declare at a private view in the 1960s. ‘And that’s heterosexual art.’ It would have been intriguing to hear his views on Queer British Art at Tate Britain. All the more so since it includes several of his own works, including a fine line-drawing study of the playwright Joe Orton, completely naked except for his socks — which he kept on because he felt they were sexy — and reclining somewhat in the manner of Manet’s Olympia.