For those that don't know, I teach college. The new school year has started and I got the first crop of reports from one of my freshman classes. Inside a report was a Post-It note with a handwritten note reading: "I know you're big. I've been watching." This report was submitted by a female student. It's too early in the semester for me to recall who is who in this class, but of course next time I'll be looking to see who she is. Question is, what do I do? I can't think of a way of responding without putting myself in a tenuous professional position. I have no intention of pursuing a professor/student fling, but I feel like I should somehow respond, let her know that I saw the note, or do something about it. Any ideas?