Is it more likely that I came to grad school looking for an environment where my beliefs wouldn't be challenged, or simply that I'm at risk of violence if the wrong person sees me and decides to yell, "what's *he* doing in here?"

Do I need to grow a thicker skin than the one I got by spending my twenties in submarines and oil refineries, or does it make sense that hearing "No, you're wrong, you're a man and you'll always be a man" from yet another authority figure, on a day when my brain is screaming the same thing especially loudly, might temporarily wreck my ability to focus on anything other than staying alive?