1 It is, however, to be observed that the Edict of the aedile forbids dogs, boars, bears, or lions to be kept near where there is a public road, and directs that if any injury be caused to a free man through disobedience of this provision, the owner of the beast shall be condemned to pay such sum as to the judge shall seem fair and equitable: in case of any other injury the penalty is fixed at double damages. Besides this aedilician action, that on pauperies may also be sometimes brought against the same defendant; for when two or more actions, especially penal ones, may be brought on one and the same ground, the bringing of one does not debar the plaintiff from subsequently bringing the other. TITLE X. OF PERSONS THROUGH WHOM WE CAN BRING AN ACTION We must now remark that a man may sue either for himself, or for another as attorney, guardian, or curator: whereas formerly one man could not sue for another except in public suits, as an assertor of freedom, and in certain actions relating to guardianship. The lex Hostilia subsequently permitted the bringing of an action of theft on behalf of persons who were in the hands of an enemy, or absent on State employment, and their pupils. It was, however, found extremely inconvenient to be unable to either bring or defend an action on behalf of another, and accordingly men began to employ attorneys for this purpose; for people are often hindered by illhealth, age, unavoidable absence, and many other causes from attending to their own business. 1 For the appointment of an attorney no set form of words is necessary, nor need it be made in the presence of the other party, who indeed usually knows nothing about it; for in law any one is your attorney whom you allow to bring or defend an action on your behalf. 2 The modes of appointing guardians and curators have been explained in the first Book. TITLE XI. OF SECURITY The old system of taking security from litigants differed from that which has more recently come into use.