in reply to
Re^2: A New Lesson For My CGI Course
in thread A New Lesson For My CGI Course
That is the exact reason, but it's a reason that isn't immediately obvious to many people. That's why I'm suggesting Brother Ovid make it explicitly clear as to the benefit.
Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.