X-ray examination of a recently discovered painting—judged by some authorities to be a self-portrait by Vincent van Gogh—revealed an under image of a woman's face.

Among the ill-judged remarks that she calls "saboteurs of small talk", she includes "self-absorbed comments like 'I had the strangest dream."

"Behaviours judged as reckless and self-serving on the high street must not be rationalised as acceptable on trading floors," Myners said.