If personal property is lent for use for a specified time or purpose, it must be returned to the lender without demand as soon as the time has expired or the purpose has been accomplished. In any other case, it need not be returned until demanded. The borrower of personal property for use shall return it to the lender at the place contemplated by the parties at the time of the lending, or if no particular place was contemplated by them, at the place where it was at the time of the lending.