ValueC,

You mention teaching, and I don't recall hearing the witicism...... "Those who have taught knows (sic) that the questions students ask often increase the knowledge and capability level of the teachers to the level beyond what he would have been had the questions were never asked"

I have only heard, "Those that can't do, teach, and those that can't teach, teach gym."

any correlation?

Good luck

(I) can't wait