Is it ethical for a buyer to reject documents presented under a letter of credit that contains only a minor discrepancy between the documents and the credit? Do the reasons matter? Does it matter that the buyer may know that the shipment actually conforms to the requirements of the contract and of the letter of credit? What does the following statement mean? "Buyers and their banks have on occasion been known to 'invent' discrepancies; to make a 'mountain out of a molehill."