(golden rule): One should treat others as one would like others to treat oneself. (cf. silver rule): One should not treat others as one would not like to be treated.
(Matthew 7:12): "all things whatsoever ye would that men should do to you, do ye even so to them"
(Luke 6:31): "as ye would that men should do to you, do ye also to them likewise"
(Global Ethic): "We must treat others as we wish others to treat us." [1]
Neither golden rule (doing good) nor silver rule (doing no harm) may make sense of such retaliation as tit for tat as a social, if not moral, behavior.