Dr. Doris D’Artest.
(Watch the gentle glee as this guy describes the process and the potency.)
BTW: I imagined all of this stuff and I was almost 100 % on point = very scary.
PS: I do not in the least expect you to watch this. 🙂
PPSS: Ff you want a pure scare, fast forward to the last
few moments where he discusses, ‘yield and potency’. Volume two has a scene where this is done with frightening proficiency.