This title brings to mind the Paradox of the Court. A famous rhetoritician/lawyer in Greece taught his craft to a student. The student never paid his bill, clai

This title brings to mind the Paradox of the Court. A famous rhetoritician/lawyer in Greece taught his craft to a student. The student never paid his bill, claiming the teacher sucked. The teacher sued the student for the fee. The student represented himself. The teacher pointed out that if the student wins, he must pay up as it would be proof he had learned the craft of lawyering. And, if the student lost, then he should have to pay as well. The student argued the opposite: regardless of the verdict, he shouldn't have to pay for similar (but opposite) reasons. In short, if s teacher cannot teach one how to teach, then the teacher was by definition not a good teacher.