He had just executed a trasgressor by tearing him to pieces with the coldness of a serial killer. Then, as if nothing had happened, he returned to his usual kind and cheerful tone. Demetri, darling, could you clean it up? He asked nonchalantly, as if he weren't literally talking about a dismembered corpse. You've been his beloved protégé for two months now, but you're still having trouble getting used to his sudden mood swings.