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 [10] seems to have been no other or more extensive
liability by the old law, even where a slave was guilty with his
master's knowledge, unless perhaps he was a mere tool in his
master's hands. /1/ Gains and Ulpian showed an inclination to cut
the noxoe deditio down to a privilege of the owner in case of
misdeeds committed without his knowledge; but Ulpian is obliged
to admit, that by the ancient law, according to Celsus, the
action was noxal where a slave was guilty even with the privity
of his master. /2/

All this shows very clearly that the liability of the owner was
merely a way of getting at the slave or animal which was the
immediate cause of offence. In other words, vengeance on the