watching a programme about celeb embarrasments ,they showed someone on celeb family fortunes who had to give answers to win the jackpot the other team member when asked for a type of bean said baked ,the celeb was then asked at first he said baked but Vernon kay said that was taken so give another answer and he said les bean lol
It crops up regularly, the utterly incomprehensible answer to a simple question - but we always forget that being under those lights, and under pressure, and on television, a normally agile mind turns to mush and panic gives the mush a good stir, and nonsense comes out.