--- Years later ---
An old, balding man fumed and struggled to retain his focus on the task at hand. Flickering candles barley illuminated the room.
"Damn him!" The old man thought, his features further distorted by flickering chakra as he moulded it to his will.
"Telling me that all of my subjects were inadequate just because they still screamed. Hmph. And I'd put so much work into my technique, getting them to do reports. He should have said he didn't need it! And he needn't have neglected them that much after deciding he didn't want them! It would have been that much simpler if the remaining had been strong enough to survive the additional procedure." He smiled the type of smile evil scientists spend years mastering.
"But that won't matter anymore, no! If he kills this one my work won't be lost! Hahahaha." Thinking of his own brilliance, he started cackling quietly, then just as suddenly frowned.
"If he hadn't set me this deadline it could have been complete, but no! I had to use this subject just because he's impatient. They'll need work if he wants them to be quiet like this one."
So focused on his own problems, he didn't notice the unusual noises outside his door.