Sorry guys.
I had no idea. I was just looking for a lazy shortcut,
but to quote some western I saw a long time ago:
"Why, Oh Why, Must there bee all this fight'n and kill'n?" (with a Southern twang)
Philosophically, "Everyone you meet can teach you something." No one knows everything. The active is learning the passive is teaching.
Suffer the fools - they will always know something you haven't learned. It isn't a contest, we all become fertilizer for another generation.
and preaching is easy if you have no skin in the game, mea culpa - so have at it.