It wasn't my first time, but it was my first time having to work that hard for someone's attention professionally. He not only had power, he also had incentives not to take me on (not enough time, high-risk low-reward, sets a precedent of accepting younger students, etc.). Dr. C has definitely become friendlier to me recently, although I still find him harder to charm than most of the people I work with. I think part of that is that yes, it works for him to make people a nervous and concise. I think he's also just socially awkward as well.