The story has been told of a bank employee who was due for a good promotion. One day at lunch the president of the bank, who happened to be standing behind the clerk in the cafeteria, which charged small fees for condiments, saw him slip two pats of butter under his slice of bread so they wouldn’t be seen by the cashier.
That little act of dishonesty cost him his promotion. Just a few pennies’ worth of butter made the difference. The bank president reasoned that if an employee cannot be trusted in little things he cannot be trusted at all.
Baker Books, 1500 Illustrations for Biblical Preaching, by Michael P. Green