Ah, so he is exactly the sort of person Theo Maske complains about in The Underpants.

THEO: Yes, I've seen these sensitive men singing their hearts out on the stage, crooning love songs and weeping over their lady loves. Why would a woman want a man who acts like a woman? Let women go off and write poems and stand on the stage singing of their broken hearts. Men, strong, vital men, should be at their desks, filing files and stamping documents and going home at five o'clock.

And yet, Theo and the professor SHARE THE SAME STYLE MUSTACHE! Unless the director asks me to shave.