This section of the book is from the "Canadian Banking Practice" book, by John T. P. Knight.
Question 397.— A current account bears interest at 3 per cent., $10,000 to be free. If the balance should run below that amount, say to $4,000, would you consider the difference between the actual balance and the amount to be held free in the nature of a loan, and charge 6 per cent. interest?
Answer.—Presumably the free balance is intended to represent remuneration for services of some character rendered by the bank, and what would be a fair adjustment should the balance fall below the amount agreed upon would no doubt depend upon the nature of the services rendered, and the other facts of the matter.