I found this quick story on Futility Closet's blog here. The origianl source was Beckles Willson's George III (1907).
"Early one morning [George III] met a boy in the stables at Windsor and said: ‘Well, boy! What do you do? What do they pay you?’
"‘I help in the stable,’ said the boy, ‘but they only give me victuals and clothes.’
"‘Be content,’ said George, ‘I have no more.’"