Downing Street is bracing itself for a very unpleasant Saturday night, as it awaits the revelations from Andrew Rawnsley's new book, which is being serialised in The Observer. There has already been speculation about the contents of the book and in particular allegations of physical violence by the Prime Minister against a secretary and another official.
One of the incidents which may or may not appear in the Rawnsley book concerns an allegation that Gordon Brown was so incensed at the media coverage of the so-called "snub" of the Prime Minister by President Obama while on a visit to the UN in New York last year, that he bawled out his senior political adviser, the mild-mannered Stewart Wood.
Brown was furious that his spin doctors had "allowed" the story to get legs. Sitting naked in his hotel room he allegedly screamed at Wood: "You're a c***", and proceeded to abuse another member of staff, calling him an "even bigger c***".
Stewart Wood is no junior official. He works in the Prime Minister's policy unit, covering international affairs. Widely respected, but diminutive, he is said to have been the butt of Brown's rage on more than one occasion.
Number Ten will no doubt vehemently deny any of these incidents took place, but aren't we getting to the point where there are too many incidents out in the public domain for them all to be coincidences?
Perhaps we should get Piers Morgan to put these allegations to the Prime Minister. On second thoughts...