Cap. 12 Art. 781Incapacitytosueor be sued.

The following persons may not sue or be sued:

(a) a minor, except in the person of the parent exercising parental authority, or, in the absence of such parent, of a tutor or a curator;

(b) an insane person, a person with a mental disorder or other condition, which renders him incapable of managing his own affairs, and any other person who is not vested with the free exercise or administration of the rights to which the action refers, except in the person of the party to whom such administration is lawfully entrusted, or of a curator ad litem.