MILNGAVIE, SCOTLAND - APRIL 28: Miriam Gonzales Durantez (L), the wife of the Liberal Democrat leader Nick Clegg visits Scottoiler, an award winning motorcycle chain lubricant manufacturer, with Business Minister Jo Swinson on April 28, 2015 in Milngavie, Scotland. As Miriam visited Glasgow deputy Prime Minister Nick Clegg gave a speech at the National Liberal Club in Bath, where he stressed that this is the most unpredictable election in modern British history. Britain goes to the polls on May 7. (Photo by Jeff J Mitchell/Getty Images)
