Prime Minister Gordon Brown's latest photocall at a Lewisham school went wrong after a project on life under the Nazis - complete with swastika - cropped up in press photos.
Former Tory leader Ted Heath - no fan of Margaret Thatcher - glowers at her during the Tory conference in 1998. The picture did little to dispel rumours of party infighting.
Labour's John Prescott has been a vocal supporter of Gordon Brown - but this imitation of the PM's facial mannerisms may come back to haunt him...
Liberal Democrat leader Charles Kennedy stumbled his way through the party's 2005 election manifesto launch. He blamed confusion, following the recent birth of his son.
Labour's leader Neil Kinnock claimed his wife's new boots were the cause of his falling on the beach at Brighton in 1983 as he and Glenys were surprised by approaching waves.
London Mayor and former Tory MP Boris Johnson is no stranger to being seen in a dishevelled state - but it has done nothing to harm his political career.
Labour's Charles Clarke was education secretary when he visited a north London school - only for a pupil to sabotage the press call...
British PM Tony Blair arguably gave the speech of his career at the labour Party conference in 2000 - but the media's gaze was distracted by the sweat stains on his shirt.
Russian leader Boris Yeltsin - no stranger to a reviving vodka or two - took to the stage in 1996 in the Russian city of Rostov while on the campaign trail.
The famously teetotal George W Bush was, like Yeltsin, no stranger to joining in song and dance routines. This display during a 2007 malaria fundraiser provided satirists with a gold mine.
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