``Two rather different philosophers, separately as far as I know, have come to
the same conclusion in trying to make sense of the fact that plainly dogs have
names but they are dog names, have the grammar of dog names and not the grammar
of human names.  Jacques Derrida playfully wondered why Ryle used ``Fido'' when
giving an example of a name, and Pierre whispered to him that it was so the
example would remain docile, the general idea being that dogs answer to their
names but do not answer back.  Stanley Cavell, a great philosopher whose work is
hampered by the fact that he has cats but no dogs, also believes that animals do
not talk back.

``Well, dogs do talk back, all the time ...''

 Vicki Hearne _Animal Happiness_ p.135