A woman sat next to an Ashkenzai rosh yeshiva on a bus. He moved and there was a big argument. The next day she sat next to a Sephardi rosh yeshiva. Hedidn’t move nadshe got off at the next stop disappointed. When asked about it he said “Hu rav. Ani chacham”.
BTW, in Germany there was a designation “Chaver” which YU revived forty years ago. I heard about someone who insists on being called to the Torah as “ben haChaver”.