It’s hard to believe that Radha Krishna Rao, my former teacher at Badriya PU College, is no more. Just a few weeks ago, during a phone conversation, he had said warmly, “Make sure you drop by the next time you’re in town.” That call must have been my first conversation with him since I left PU college, likely in the early 1990s. Despite the long gap, we spoke with the comfort and familiarity of close friends. I even pulled his leg a bit - calling him out for being the kind of teacher who could control an entire class with just a stern look.