An Orange a Day

A man visits a fruit stand every morning and buys a bag of oranges, after weighing them, he would pick one out and taste one slice and complain that it is sour, before the lady could replace he would leave, The old lady smiled every time he did this the next few weeks.

The other shopkeeper was watching this every day and then she asked "why do you allow him to come in every day, take a slice of orange complain and then leave?

The old lady replied he buys one orange for me every day and that is why I smile and always give him a little extra with his slice.