Nasrudin and a friend were thirsty, and stopped at a café for a drink.
They decided to share a glass of milk.
   ‘You drink your half first,’ said the friend, ‘because I have some
sugar here, just enough for one. I shall add this to my share of the
milk and drink it.’
   ‘Add it now,’ said the Mulla, ‘and I will drink only my half.’
   ‘Certainly not. There is only enough sugar to sweeten half a
glass of milk.’
   Nasrudin went to the owner of the café, and came back with a
large packet of salt.
   ‘Good news, friend,’ he said, ‘I am drinking first, as agreed,
and I want my milk with salt.’