(c) One has a right to compensation who has been condemned under a sentence manifestly unjust, because the law is certainly unjust or because the judge clearly gave a wrong decision in a matter of fact (e.g., he erroneously presumed that a debt had been contracted, or that it had not been paid).
1933. Some Cases in Which There Is No Right to Compensation.—(a) Employees have no right to compensation for subtractions from their salary, if they culpably injure the property of their employer, or if they agreed to such subtractions; nor for the smallness of their wage, if they freely accepted it (e.g., if they regarded it as a favor to be employed, and the employer did not really need them), or if it is made up for by presents, board or lodging, opportunity for good tips, etc.; nor for unusual labors, if they hired themselves out for general service (unless they are asked to perform work of an entirely unforeseen kind, such as a very perilous mission), or if they undertook these labors freely without the knowledge or wish (express or tacit) of the employer.
(b) Merchants have no right to compensation for goods sold by them below the minimum just price, if they freely agreed to sell at that price.
1934. Children and Employees and Compensation.—Some special questions arise for consideration in case of parents who employ their own children, and of employers who are forced to underpay on account of the dishonesty of their help.
(a) Children who work for their parents and who are entitled to a salary, by agreement or from the law, have the same rights as other employees, but injustice against them would be less frequent. In this country the father has a right to the services and wages of his unemancipated child, but the child becomes independent of the father when it reaches the age of majority or when the father relinquishes his right.
(b) Employees who are underpaid because the employer is cheated by his help have the right to occult compensation, if they are forced to take less than a living wage (1932); otherwise this is not permissible, unless it be certain that the employer is not unwilling that the honest employees receive more than their pay. In practice, on account of the great peril of injustice, it is advisable that such workers seek better pay through their organizations or else look for employment elsewhere.
1935. Conditions Required by Legal Justice for Occult Compensation.—(a) Occult compensation must not be used if payment can easily be obtained through suit at law or agreement; for the order of law and the public welfare require that one should not have recourse to the extraordinary means of occult compensation if ordinary means will suffice and not cause notable difficulties. But as a rule it seems this obliges only under venial sin, since ordinarily the departure from normal procedure in this matter is not seriously detrimental to public morals or order; and it does not impose a duty of restitution, since he who takes only what belongs to him does not offend against commutative justice. Indeed, if it is certain that other means will be futile (e.g., because one has not sufficient evidence to win or because the decision would he biased) or harmful (e.g., because great dissensions will be aroused, or heavy expenses incurred in litigation), occult compensation is not even venially unlawful.
(b) Occult compensation, according to law, should not be used by a bailee, for he has a lien for his services and proper expenditures in caring for the object bailed, but not for any other debt the bailor may owe him (Bolles, _Handy Law Book_). This is obligatory at least for the external forum.
1936. Some Conditions Required by Charity for Occult Compensation (see 1165, 1236, 1483).—(a) Charity towards the Debtor.—The creditor should see, when possible, that the debtor suffers no loss by occasion of the compensation. Hence, in order to spare the debtor the evils of a bad conscience in reference to the debt or of a second payment of the debt, the creditor should, if possible, inform the debtor that the debt is cancelled or that payment is not expected.
(b) Charity towards Third Parties.-The creditor should, if possible, prevent any trouble or loss to others that might be occasioned by the compensation, such as suspicion of theft that might fall on servants.