immediate offender was the object of the Greek and early Roman
process, not indemnity from the master or owner. The liability of
the owner was simply a liability of the offending thing. In the
primitive customs of Greece it was enforced by a judicial process
expressly directed against the object, animate or inanimate. The
Roman Twelve Tables made the owner, instead of the thing itself,
the defendant, but did not in any way change the ground of
liability, or affect its limit. The change was simply a device to
allow the owner to protect his interest. /3/

But it may be asked how inanimate objects came to be [11] pursued
in this way, if the object of the procedure was to gratify the
passion of revenge. Learned men have been ready to find a reason
in the personification of inanimate nature common to savages and
children, and there is much to confirm this view. Without such a
personification, anger towards lifeless things would have been
transitory, at most. It is noticeable that the commonest example
in the most primitive customs and laws is that of a tree which
falls upon a man, or from which he falls and is killed. We can
conceive with comparative ease how a tree might have been put on
the same footing with animals. It certainly was treated like
them, and was delivered to the relatives, or chopped to pieces
for the gratification of a real or simulated passion. /1/

In the Athenian process there is also, no doubt, to be traced a
different thought. Expiation is one of the ends most insisted on
by Plato, and appears to have been the purpose of the procedure
mentioned by Aeschines. Some passages in the Roman historians
which will be mentioned again seem to point in the same
direction. /2/