The defendant interposes the plea of infancy as a bar to the plaintiffs’ right to recover, and, so far as this right depends on an express contract, it is a complete answer. The express contract, on which the plaintiffs’ rely, was voidable at the defendant’s election, but it does not necessarily follow, because the defendant exercises his privilege to avoid the contract, that he is under no liability to the plaintiffs.
*355
The right of infants, lunatics, persons
non compos
mentis, and drunkards, when in such a state as to be entirely deprived of reason, to avoid their contracts, is placed on the same ground. They are considered to be devoid of that freedom of will, combined with maturity of reason aud j udgment, essential to enable them to give the assent necessary to make a valid contract. To protect them from fraud and imposition, to which from their want of understanding and immaturity of judgment they are exposed, they are permitted to allege their want of capacity to bind themselves by contract. But this privilege is to be used as a shield, not as a sword; not to do injustice, but to prevent it.
Zouch
v. Parsons, 3 Burr. 1794;
Seaver
v.
Phelps,
But while the disabilities of these different classes of persons and the reasons on which they are placed are the same, and they equally require protection, the application of the principles of law governing their rights and liabilities and their status has been widely different, and has undergone marked changes from time to time. Under the ancient common law, lunatics were allowed to show their lunacy in defence of their alleged contracts (2 Bl. Com. 291) ; but later, in the times of Edward III, “ a scruple began to arise whether a man should be permitted to blemish himself by pleading his own insanity. Under Henry VI this way of reasoning * -* * was seriously adopted by the judges * * *, and from these loose authorities, which Fitzherbert does not scruple to reject as being contrary to reason, the maxim that a man shall not stultify himself hath been handed down as settled law.” 2 Bl. Com. 291, 292; Bac. Abr., Idiots & Lunatics, F. The reason assigned for this maxim was, that a man cannot know in his sanity what he did when he was insane
(Stroud
v.
Marshall,
Cro. Eliz. 398;
Cross
v.
Andrews,
Cro. Eliz. 622); or, as stated by Littleton, “ no man of full age shall be received in any plea by the law to disable his own person.” Co. Litt., B. 3, 247
b.
That such a doctrine ever could have been held to be law seems incredible, for, to use the language of Wilmot,
J.,
it does seem to be very unaccountable that a man should be at liberty to. avoid his own acts caused by the duress of man, and not those caused by the duress of Heaven. Wilm. Op. 155; 5 Bac. Abr. (Bouv. ed.) 28. “How so absurd and mischievous a maxim could have found its way into any system of jurisprudence, professing to act upon civilized beings, is a matter of wonder and humiliation. There have been many struggles against it by eminent lawyers in all ages of
*356
the common law; but it is, perhaps, somewhat difficult to resist the authorities which assert its establishment in the fundamentals of the common law — a circumstance which may well abate the boast, so often and so rashly made, that the common law is the perfection of human reason.” Story Eq.,
s.
225. But this doctrine has been exploded as manifestly against natural justice (2 Kent Com. 451), and it has been finally considered, in this and other jurisdictions, that lunatics and persons
non compos mentis
may show their incapacity as a defence to their contracts. Indeed, this doctrine seems now well established in this country.
Lang
v. Whidden, 2 N. H. 435;
Burke
v. Allen, 29 N. H. 106;
Mitchell
v. Kingman,
Again: it was formerly held that the contracts of lunatics and persons.
non compos mentis
were absolutely void
(Thompson
v. Leach, 3 Mod. 301;
Gore
v. Gibson, 13 Mee. & W. 623; Chit. Con. 24, 139); but this has been seriously questioned, and it is now held that they are voidable only
(Wait
v. Maxwell,
The privilege accorded to infants to avoid their contracts rests on the same ground as that accorded to lunatics and persons
non compos mentis,
— protection against fraud to which by reason of their immaturity of judgment they are liable. So far as relates to their contracts, these different classes of persons are said to be parallel, both in law and reason.
Seaver
v.
Phelps,
Again: as has been shown, infants were formerly held liable on their contracts for necessaries; but it. is now held that they are liable, not, by virtue ox any contract, but on the ground of an implied legal liability based on the necessity of the situation. Bing. Inf., Bennett’s notes, 87.
It is, apparent that the tendency of the later decisions is to en7 large the liabilities and obligations of infants; and, while the liability has, not. in their case been extended so far as it has in regard to ■ lunatics and persons
non compos mentis,
the principle on which it. rests is the same. The grants of infants and persons
non compos
are parallel, both in law and reason.
Thompson
v.
Leach,
3 Mod. 301;
Seaver
v.
Phelps,
The right to recover for necessaries is given, because the infant has derived a ben§fit therefrom. It is upon no other ground. If the benefit is the foundation of the right, why should it be limited to necessaries? It cannot be said that the infant, if engaged in trade or business, may not derive a benefit therefrom. If benefit obtained by the infant is the test in one case, why not make it the test in all eases ? This has been made the test in the case of lunatics and persons non compos mentis, and it should be applied in the case of infants. The true rule is, that the contract of an infant or lunatic, whether executed or executory, cannot be rescinded or avoided without restoring to the other party the consideration received, or allowing him to recover compensation for all the benefit conferred upon the party seeking to avoid the contract. The question whether the infant has received a benefit, — like the question of what are necessaries, and what sum the infant ought to pay for them, or the question of negligence or ordinary care, and other similar questions, — is one of mixed law and fact. No uniform rule can be established. A contract, which under some circumstances to one person might be beneficial, under others and to another might be injurious. In no two cases are we likely to find the same facts; and it must always be for the trier to apply the law to the facts, and determine whether the infant has been benefited, and to what extent. Bing. Inf., Bennett’s notes, 88.
Our conclusion is, that the plea of infancy is not a bar to the plaintiffs’ recovery, but that they may recover to the extent of the benefit received by the defendant, not exceeding the price he agreed to pay for the goods.
Case discharged.
