Indeed. We are required to maintain alternative identity amongst the population when we leave the lair. Occupations are part of this disguise.

[ He raps his knuckles lightly on his own chest. ]

Even I perform to the role assigned to me. I am a Doctor of teaching. [ He means he's a PhD... ] I learn as much as I teach, observing the fledglings in my tutelage has informed me of much human culture.