system or their own time, drew on their wits for an explanation which would show that the law as they found it was reasonable. Gaius said that it was unjust that the fault of children or slaves should be a source of loss to their parents or owners beyond their own bodies, and Ulpian reasoned that a fortiori this was true of things devoid of life, and therefore incapable of fault.[1]
This way of approaching the question seems to deal with the right of surrender as if it were a limitation of a liability incurred by a parent or owner, which would naturally and in the first instance be unlimited. But if that is what was meant, it puts the cart before the horse. The right of surrender was not introduced as a limitation of liability, but, in Rome and Greece alike, payment was introduced as the alternative of a failure to surrender.
The action was not based, as it would be nowadays, on the fault of the parent or owner. If it had been, it would always have been brought against the person who had control of the slave or animal at the time it did the harm complained of, and who, if any one, was to blame for not preventing the injury. So far from this being the course, the person to be sued was the owner at the time of suing. The action followed the guilty thing into whosesoever hands it came.[2] And in curious contrast with the principle as inverted to meet still more modern views of public policy, if the animal was of a wild nature, that is, in the very case of the most ferocious animals, the owner ceased to be liable the moment it escaped, because at that moment he ceased to be owner.[3] There
