Britain's Conservative party leader David Cameron (L) stumbles as he is greeted by Scottish Conservative party leader Annabel Goldie, on his arrival for a visit to a bakery in Glasgow, Scotland October 16, 2009. Cameron was visiting the bakers with Ruth Davidson, the Scottish Conservative party candidate for the forthcoming Glasgow North East by-election. Reuters Pictures logo Reuters Pictures 28 months ago

Britain's Conservative party leader David Cameron (L) stumbles as he is greeted by Scottish Conservative party leader Annabel Goldie, on his arrival for a visit to a bakery in Glasgow, Scotland October 16, 2009. Cameron was visiting the bakers with Ruth Davidson, the Scottish Conservative party candidate for the forthcoming Glasgow North East by-election.