If an amount greater than the amount of the indebtedness is tendered, it is sufficient if the surplus is to belong to the creditor,1 or if change is already made, so that he can select the exact amount due, but it is insufficient if the creditor is required to make change.2 It has been held, however, that a common carrier of passengers must furnish change to a reasonable amount, so that it is not unreasonable for a passenger to tender five dollars in one piece and ask for change in paying a five-cent fare.3