"You mentioned my Companions before," the Doctor said, glowering. It was what set him off on the Network. "You don't tell me what to do," he added, stubbornly continuing to sulk, shaking the ice in his cup before setting it down upon the window sill for it to melt a bit before he would drink again.
The Master's question turned his thoughts inward, and he finally told him, pointedly, "You know. I've told you once before. And don't say you forgot, your memory is better than mine."