When Arnold gets tired of Helga picking on him every day, Grandpa tells him a story about a girl who did the same thing to him when he was a kid.
This episode is often disliked by fans because of Helga going too far, being much crueler than her usual antics, and not getting consequences for her actions (or even apologizing for it), while Arnold gets in trouble for retaliating, despite Helga starting it.
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