how does antinous verbally and physically abuse Odysseus?

Odysseus enters after Eumaeus to beg amongst the suitors. They give him bread, but Antinous soon turns against him. Telemachus defends the beggar and calls Antinous selfish. The others give Odysseus food, and he praises Antinous' appearance and starts a story about how he was once rich, too. Antinous interrupts him, orders him out, (calling the beggar names) and hits his shoulder with his stool. Odysseus is unfazed by the blow and calls on the gods to kill Antinous. The other suitors scold Antinous for hitting the beggar in case he is a god in disguise, but he shrugs it off