1798. The Causes That Excuse Permanently from Restitution.—These causes can also be reduced to two general ones, namely, the cessation of the object and the termination of the obligation through the act of the creditor, or of the debtor, or of authority.

(a) Thus, the cessation of the object releases from the duty of restitution whenever the object perishes to its owner, as when it is lost by a possessor in good faith who has not been enriched by it, or even by a possessor in bad faith, if it would have been lost equally by the owner (see 1771, 1774).

(b) The termination of obligation through the act of the creditor occurs when the creditor freely and lawfully excused the debtor from payment. In some cases condonation may ordinarily be presumed, either on account of the affection of the creditor for the debtor (e.g., in case of debts owed by children to their parents) or on account of the familiar relationship between the parties and the smallness of the debt (e.g., in case of appropriation by servants or employees of some unimportant articles not kept under lock and key), or on account of the indigence of the debtor and the smallness of the damage (e.g., in case of trifling harm to goods of a wealthy person, if there was no great malice and the debtor is very poor).

(c) The termination of obligation is also effected by equivalent payment, which in certain cases is made by payment of the creditor’s creditor, or the cancellation of an equal debt owed the debtor by the creditor, and perhaps also by a gift made the creditor by the debtor and equal in value to the debt. Occult compensation by the creditor is the secret taking by him of what he is entitled to when the debtor will not give it of his own accord. This is lawful when the debt is certain, other means of recovery impossible, and the compensation not injurious; but it covers restitution, and hence the creditor cannot accept another payment from the debtor.

(d) The termination of obligation is also effected by the act of competent authority. Thus, judicial declaration frees from the duty of restitution a person who has lawfully and in good faith received certain goods as damages or award; prescription (see 1875) gives a clear title to property held by adverse possession over a certain number of years, and it frees from the duty of payment, at least in certain cases (though not in the United States); papal composition for good reasons exempts from their obligation those who owe restitution to pious causes or to church property injured by them.

1799. Condonation of the domestic thefts of wives and children of the family cannot be presumed in all cases (see 1903).

(a) Thus, if the things stolen are articles of food and drink (or tobacco), and were consumed by the members of the family, there is no duty of restitution, since the father or husband is then unwilling, not so much that these things should be taken, as that they should be taken furtively.

(b) If the things taken do not fall under the class of eatables and are still in the possession of the thief, they should be restored. Hence, if a son steals money from his father in order to have the means for debauchery, he must give back that money.

(c) If the things taken were not eatables, but were of great value and have been consumed or alienated, it will depend on circumstances whether restitution is obligatory or not. Thus, if the father thinks much of the son who took the money and the family does not miss it much, condonation may perhaps be taken for granted; but if the son is not on good terms with his father, or if the theft is very harmful to the family, restitution may be due.

1800. Excuse from Restitution on Account of Doubtfulness of Obligation.—(a) One who doubts positively and in good faith whether or not he did damage to another is excused from restitution if the doubt is about the fact of the damage (e.g., whether his competitor lost business) or about his own culpability (e.g., whether he circulated a calumny about his competitor); he is probably held to restitution _pro rata_ of the doubt, if the doubt is about the responsibility of his culpable act for the damage that followed (e.g., whether his calumny or the poorness of the competitor’s wares caused the falling off in business); he is probably held to only his share, if the doubt is whether his culpable act was responsible for the whole or only a part of the damage (e.g., whether his calumny caused all the damage, in view of the fact that others were also spreading calumnies).