Once a student of Mr. Hung’s, always a student of Mr. Hung’s, I tell my students. No matter how many years into the future, and no matter the reason, I want my students to know that they can always reach out to me – whether that’s just to say hi, to ask for advice about college majors, to review mathy stuff we talked about once upon a time, or to request a letter of recommendation, et cetera. College and young adulthood can be exciting times, but also discouraging ones, too, so it’s part of my commitment to my former students that if they ever want to talk about anything, even if it’s years or decades into the future, I’ll be here for them.