This article is just fabulous. Written by an ex-police officer and Marine who now teaches physics, it outlines why teachers deserve more credit than they're getting.
The reason it fits in this post is that Matthew Swope mentions things teachers do that blur the professional boundary between student and teacher. It's risky to cross that line, but teachers do it every day in order to let a kid know someone cares about him enough to stand by his side even if there's no learning target involved. Even if it could be seen as inappropriate.