Who throws a stool at the beggar in odyssey?

In Homer's "The Odyssey," it is Antinous, one of the suitors vying for Penelope's hand, who throws a stool at the beggar, who is actually Odysseus in disguise. This act of aggression highlights the suitors' disrespect and arrogance, as they mistreat the beggar despite his vulnerable state. The incident is pivotal, as it sets the stage for Odysseus's eventual revelation of his true identity and his quest for revenge against the suitors.