"And I am a qualified Time Lord of Galifrey," the Master snapped, completely ignoring Cayce "with higher degrees in Cosmic Science, Temporal Engineering and Multi-Dimensional Astrophysics, who is in no way interested in your piddling degree. My people are older than yours, undoubtedly more learned than yours, and guardians of the Universe at large. Surely no one has any interest in you waving your qualifications about in some sorry attempt to give retort to a flat out insult. My name, upon receiving my degree, was changed to the Master, which I should point out I have no reason to inform you of, as you have offered no name in return."

The fact that this was not the time to be getting into this sort of pissing contest had apparently not occurred to the Master at all. He was at least sure that the Rani would side with him if things got ugly.