Updating the machine would happen later. Right then, in the cool room, with Marcus's body on the floor, Rufus's instant concern was getting the hell out of there, quickly!
Tearing the electrodes from Marcus's head, he pulled off more flesh. He decided he wouldn't bother to return the body to the drawer. That was a mistake!
He decided that now was time for revenge! Out came a carving knife and, turning his attention down below, he hacked at Marcus's erection, slicing it off at the base. He dropped it, still stiff, into a plastic bag he had remembered to pack.