I'm very glad my university never inflicted that nonsense on us as a requirement. You could tell who the loons were because they did it voluntarily (and most of us didn't -- engineering and ag heavy land grant university, we probably have one of the least left-wing faculties in the country, leaving aside Hillsdale College, UATX and Bible colleges). I'd thought if they did I'd pick he/her/its and claim to feel masculine when I am the subject, feminine when I am the object, and neuter when I possess things, but I just realized as this nonsense is fading nationwide that the best parodic "preferred pronouns" would be who/whom/whose.