Ron and Hermione met Harry at the Ministry moments before thirteen year old Rosie's hearing. "We still don't know what she did," Ron told Harry. "Right good Secret Keeper, that one." Rosie glared thunderously at her parents, but maintained her steely silence.
Protocol required that the parents wait outside, so Rosie was escorted into the chamber by her Uncle Harry. Watching the Wizengamot retreat, Ron and Hermione took comfort in seeing many former Hogwarts classmates - a friendly jury.
UnderSecretary Patil convened. "Charges are that the accused, Rose Weasley, did knowingly and in full awareness of the illegality of her actions, use magic outside of school while under the age of seventeen, as evidenced by trace. Miss Weasley, have you or have you not been performing underage magic this summer?"
"It wasn't my fault! Just the one spell - several times actually - but it's not like I hurt anyone. I'm the victim. Hugo, too! I'd do it again if I had to. And I will. Have to, I mean. I cannot be expected to just endure it."
"Miss Weasley, kindly just inform the Wizengamot what spell was required with such urgency and frequency that you repeatedly broke wizarding law and risked near certain expulsion from Hogwarts."
Rosie blushed furiously and muttered under her breath.
"Louder, if you please, Miss Weasley."
Rosie's face was now in flames. "Silencio."
The Council erupted in laughter. To Rosie's intense mortification, a rather lively discussion regarding her parents ensued, although Rosie herself spoke not another word. Her torture finally ended when Parvati giggled "Acquitted. Justifiable cause."
Neville was chortling heartily. "Madame UnderSecretary, perhaps it would be merciful to consider an on-going waiver, due to…er...probable recurring need?" The Council chorused "Hear! Hear!" and promptly dissolved into more laughter at their double entendre.
George clutched his sides, gasping. "This. Is. Too. Good."
Later, as Harry gleefully recounted the events, Hermione's hands flew to her head as if to keep it from sailing off. "You're telling me--that our daughter--just confessed--on permanent written Ministry record--to silencing us?"
Harry was positively beaming. Hermione paused to absorb the horror, then rounded furiously on Ron. "Ronald Bilius Weasley, I warned you that our incessant bickering could have a negative imp..."
"Um, Hermione?" Harry interjected, utterly failing to conceal his delight. "It wasn't your bickering she had a problem with."
Ron looked as if he'd been confunded, before grinning sheepishly and, Harry thought, standing just a little bit taller.
And as for the brightest witch of their age? She was, at long last, struck dumb.
For Harry, it was Christmas. "Look on the bright side, Hermione. You and Ron have gotten a new law established in your honor. The Weasley Waiver. Quite the legacy, that."