DEAR BOLTON MONARCHY. I STILL CANNOT GRASP THIS CONCEPT OF WHAT IS MINE IS YOURS AND WHAT IS YOURS IS YOURS

Potion recipe, please.

You have something of mine.

I want something of yours.

The difference between us is that I would:
1. thank you for it;
2. not pass it on to anyone without your permission
3. return the recipe upon request;
4. destroy any copies that may have been made of it upon request.

And I guess that is why I spent over 20 years researching that (which you obviously feel is invaluable) and having my brains zapped while you lot brewed your lethal, addictive potions and lived a jolly good life.