Flip side of this: if there is a teacher / professor who's made a difference in your life, and you have the means & the opportunity to do so, drop by and say hi

Flip side of this: if there is a teacher / professor who's made a difference in your life, and you have the means & the opportunity to do so, drop by and say hi. As someone who's been teaching for a little while, it is truly gratifying to get a visit from a former student. It matters very little to me whether the student was a "good" student (i.e., got a good grade), or whether they've found what I taught them of any use. Just good to see how people have grown, and done different (and almost always interesting and productive) things with their lives.