Eight years. That was 8 long years in this school. For the past years, I've witnessed how students just came and left -- and were buried into oblivion. This fact never made me feel bad before. In the past, I didn't even mind seeing my students graduate. After all, students are meant to leave school to face the real world. And I didn't hang out with students. I saw them in classroom -- that was it. I never had casual conversation with them , no texting then, no calling, no e-mail, no blog, nothing. Just plain teaching. I never even had a chance to know all the names of my students then. I just knew their faces but I couldn't label those faces with their names. It was a shame on my part, I absolutely agree! But things have changed. Now, I have a "sad feeling" whenever a student leaves -- but of course, it also depends on the kind of students. There are two possible reasons for this feeling. And this is based only on my personal experience. I started feeling this...