Claude Littner knows exactly what it's like to get on the wrong side of Lord Sugar.
The fearsome business executive has won legions of fans over the years for his scathing remarks and savage put downs during the interview stage of The Apprentice.
The 72-year-old proved such a hit that he took over the role of Lord Sugar's trusted aide from Nick Hewer in 2015 - and is the only person to having grilled the final five candidates in every series.
