Ad Quintum Mucium libri
Ex libro XVII
Pomponius, On Quintus Mucius, Book XVII. Quintus Mucius says that while a mare was pasturing on the land of another she lost her foal, when the owner of the land was driving her away; and the question was asked whether or not the owner of the mare could proceed under the Lex Aquilia against the party who had driven her away, because he had injured the mare by striking her? And it was held that if he struck her, or designedly drove her away with too much violence, he can bring suit. 1Pomponius. Even though anyone should find the cattle of another on his own land, he must drive them away in the same manner as he would his own; since, if he has sustained any damage on account of their being there he has a suitable right of action. Therefore, where anyone finds the cattle of another on his own premises, he cannot lawfully shut them up, nor should he drive them away in any other manner than if they were his own (as we stated above) but he must either drive them away without injuring them, or notify the owner to remove them.