"Would you really have wanted me to just walk away? After all we've been through together?"
He suddenly chuckles, and clamps his mouth closed to try to cover it. "Oh, my attachment to life is very...particular." He wonders if the Master can hear his single human heart pounding in his chest. "Just how many times have you...has someone...tried to teach me a supposed lesson? And what is it that I was wrong about, exactly?" He sticks his hands in his pockets, casually stepping to the side to get them in better view on the CCTV cameras. What the hell are they all up to down there anyway? His slight smile abrubtly fades again. "Actually, you'll find you're a bit late for that. Does genocide count? Yes, since we last met, I committed genocide. So, really, what more can you want from me?"