Answer:
Two examples of great irony in haman's story are:
Haman and mordecia
Haman building the gallow and was later hanged by same.
Step-by-step explanation:
Haman was asked by King Xerxes of how he should honour someone that have pleased him, Haman suggested that the person be dressed be the royal royal robes and paraded throughout the city
thinking it was him but. it turned out that it was mordecia that got all this treatment not him.
Secondly Haman built a gallow hoping that mordecia will be hanged some day because of the hatred he had for him. Haman was an arrogant man. When Esther revealed to the king haman's intentions and how he desires that the Jews be killed, Haman was hanged in the very gallow he had prepared for mordecia.