"I am also an admirer of Sir Lawrence Bragg, who won the Nobel Prize for his work on X-ray crystallography in 1915. Bragg later became president of the Royal Institution of London. He loved the work, but missed gardening, so he took a job as a gardener one day a week at a house in South Kensington. The woman who engaged him had no idea that her gardener was one of the most distinguished scientists in Britain until a friend came for tea one day and, looking out the window, casually asked, 'My dear, why is the Nobel laureate Sir Lawrence Bragg pruning your hedges?'"
-- Bill Bryson, The Road to Little Dribbling, which is the new very funny, very cranky book from a funny and cranky man.