Poseidon was a good god who protected the sailors, but he was also very vindictive: he persecuted Odysseus who had blinded Polyphemus, his son. As one knowns, Polyphemus was a giant who had only one eye in the middle of his forehead. When Odysseus was shipwrecked near his cave, Polyphemus captured the shipwrecked people to eat them. Odysseus could with his slyness make him drink some wine and while the giant was sleeping, Odysseus blinded him with a pole made red-hot, then he escaped and he hid himself with his companions under the belly of Polyphemus' sheep.
