[Gallagher]

That's an incredibly large assumption to make. You don't think, as long as it's been since then, there has never been a wandmaker capable of working with it? Never anyone skilled, who would have the knowledge to even think to go after something like that in the first place? Ever? If it's known to be hard to work with, then it's known to be used and worked with. Out of all the people that have, no one was able to pull it off, and no one will be able to? Personally, I do not buy that. At all. The fact that it was done before so long ago is what I find astounding, considering it would have been even harder then with fewer people to even try.

Volatile doesn't just mean temperamental. Considering they manipulate and trick before they kill, I count that as a sudden, explosive shift, which is on par with the definition. So long as it threatens to break out in violence at any time, which from what I understand is, in fact, in their nature, I consider them to be volatile.