"Theodore made eighty gallons of De-aging potion and poured them in the lake. He did at least look up the effects on merpeople first."

"That's really clever."

"Isn't it? I have an excellent family. There are a lot of respects in which it could have been a catastrophically bad idea but it wasn't. That's, uh, kind of Theodore's signature."

"Karen is really glad she didn't have to look at all the merfolk and decide if they got to live."

"I can imagine."

Miranda does not go conspicuously looking for Theodore but she does send him a box of chocolates by unobtrusive school owl.

He feeds the owl his biscuits and gets into a conversation with it about the weather and then asks who sent 'em and then eats them.

Timothy, who has become newly interested in independent potions research this year, looks up ways of extending shelf life. 

Miranda's Potions partner is Madeline Malfoy. She complains about the lack of love potions on the curriculum: "It's not very well-rounded, is it?"

"Why would you need to know how to make them?"

"They're fun, aren't they? I could slip one to Yaxley."

"That's not very nice."

"There's nothing wrong with them. Timothy brews them."

"...huh?"

"I have no idea what he's doing with them, Crouch dumped him, but he brews them, I'm allergic to hyssop, remember, and I break out in hives near him sometimes also once I accidentally asked him for wolfsbane when I wanted fleabane but he had it anyway and that's not in many things, is it?"

"It's in a few things."

"All right, maybe he needed to make werewolf traps on the new moon or he was dying of the dragon pox."

"...huh."

Miranda goes to the library and uses her nice search spell to find things that have wolfsbane in them.

She gives Timothy a weird look the next morning.

"You can always drop by if you need anything," he says mildly. 

So she does.

She has a neatly indexed list of potions that contain wolfsbane and crossreferences to hyssop.

"Hi. What's wrong?"

"I don't know whether I should be more concerned that you're murdering werewolves or that you're inexplicably brewing love potions."

"The latter. For people who want to take them, not people who want to slip someone one. Been keeping extremely close track of my supply orders?"

"I wasn't."

"Are you worried someone'll tell me they want to take one and be lying and go on to slip it to someone?"

"I don't understand why this would be your niche."

"I've been doing a bunch of stuff with potion shelf life for which half the good examples listed are love potions, and I like getting people nice presents they couldn't source elsewhere. I know how you feel about it but I presume you don't actually think there's anything morally wrong with someone taking it themself -"

"I could probably contrive a situation where I thought so but not usually but it's weird, why would people do that."

"Has anyone given you the sex talk yet?"

"Nnenne has and also Rookwood got drunk and wandered into the wrong year's dorm back in January and talked a lot."

"If both parties take a potion for the evening they can have more fun."

"Yeah these ones don't look designed for that."

"I also do antidotes, if you mean they have a longer duration."