Come now, just wait till these long-haired Achaeans
sail back in their ships to the fatherland they love,
then batter their wall, sweep it into the salt breakers
and pile over the endless beach your drifts of sand again,
level it to your heart’s content – the Argives’ mighty wall.

– Homer

The Iliad, Book 7, lines 532-536. An angry Zeus responds to Poseidon’s moaning about the great wall that the Greeks built at Troy. When the Achaeans sail back home after the end of the war, he tells Poseidon that he can destroy it to his heart’s content.