She was leaving, so there was that, finally some peace and quiet, he didn't have his parents for much of his life, with both abandoning him at his grandparents and going to fight in the battle of Hogwarts. So he wasn't that used to mothers nagging, only grandparents. But he felt like another minute with this woman would be several lifetimes of motherly disappointment and scowling, how her children haven't become the greatest rebels alive was honestly shocking to him, Figaro aside from his obsession with truth potions and wrong opinions on Quidditch, he seemed like a normal person. How did that happen with this person for a mother? How was he not blowing up the toilets at Hogwarts every week or even now trying to sell gillyweed. Maybe Fig was a stronger person then he took him for.

And now she was threatening him. He believed she was a threatening woman, he felt bullied by her. However he doubted she could disrupt him much, for a start he buys stuff in person at shops not through suppliers, so he found it rather unlikely she could disrupt him much without breaking into his home or attacking him, and she didn't seem the type who would just call the aurors. She didn't want them at her door and chose to confront him instead of telling them, so how would she try doing anything without outright attacking him?

"You know, the saying I learned works very well here aswell." He continued, despite her making to leave, he thought it could help her with this situation. And he wouldn't let her try getting the last word in this, if she tries threatening he wanted the last word, he wouldn't be as petty as her to threaten her, he didn't think threatening old women was very right of himself.

Recounting the saying, he added. "If you aren't going to help. You can go fuck yourself."

Ok maybe it wasn't French, but it made him sound somewhat dramatic, like in mafia and crime stories.