From Halopedia, the Halo wiki
In 2553, he and Kij were chasing their biggest brother Hiiq over a stolen toy catapult. Gon asked his mother to make Hiiq relinquish the catapult but was told they would have to share it. They ignored her and Gon then sank his teeth into Hiiq's arm, starting a brawl. Chol forced them apart and scolded them. She then told them she was leaving and that there would be consequences if they gave their grandmother Ais any trouble.
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