What 2 mistakes does Odysseus make as he escapes the cave?
Odysseus and his men encounter Polyphemus, the Cyclops, in book 9 of The Odyssey, and not all of them survive their captivity in Polyphemus's cave. Moreover, Odysseus's hubris after their escape ultimately contributes to the loss of the rest of the men.
After the men blind Polyphemus and escape the cave by hiding among his flock of sheep when he lets it out to graze, Odysseus makes his first mistake: he identifies himself to Polyphemus and tells him it was he who blinded him. This information provokes Polyphemus to pray to his father, Poseidon, to kill the rest of Odysseus's crew and create trouble at Odysseus's home in Ithaca.
Odysseus's second mistake is sacrificing Polyphemus's black ram as an offering to please Zeus. The offering, in fact, does not please Zeus, who begins to plan the destruction of the rest of Odysseus's men and his ship.