What must a captain do if they borrow money for goods but do not use all of it?

The correct action for a captain who borrows money for goods but does not use all of it is to return the unused portion before the ship clears port. This requirement is grounded in principles of accountability and responsibility that are essential in maritime commerce. When a captain borrows funds, there is an expectation of transparency and proper management of those funds.

By returning the unused portion, the captain ensures that they are not taking advantage of the lender and is also upholding the legality and ethical standards of maritime operations. Furthermore, the return of funds reinforces the trust between the lender and the captain, which is vital for future transactions and maintaining a sound financial relationship.

This practice also helps to prevent any potential disputes or misunderstandings regarding the borrowed amount. Essentially, this action signifies a captain's commitment to financial integrity while navigating the complexities of maritime commerce.