If I have a college professor whose last name is Smith, I call him/her:
something else that I will talk about in comments
In case you are wondering why I ask, it is because at my college we always, ALWAYS called professors "Professor Whatever." And at Merrin's college, which is where our Big Bang is set, they always called professors "Dr. Whatever." All of my professors WERE doctors; we just didn't call them that.
Anyway! The Big Bang editing, it continues! Along with totally not studying for the LSAT, oops.