For example, I noticed wonderful change in David when the boy was at younger teenage age.
Instead of instant rough reaction to something, he learned to use the cogitative device.
At early teenage age David, sometimes, flew into a rage, playing baseball if other player did something, forbidden by rules, especially when it caused it physical pain.
But once in the summer evening I noted a certain progress.
There was a game of Younger league, and David ran to the platform when one of players caught the ball served because of field limits and was ready to concern this ball of David and to sideline him thus..