I have finally mastered the art of rousing a room with one sentence.
I had said: "If a 7-year-old is aware of the process of conscious choosing of information, then how can we teach that to our kids, why do we not practice it ourselves, and how can we whine about the overwhelming media if a 7-year-old kid is capable of resisting this overpowering influence?"
The entire room started responding: some said that I should not imply such credibility of that child's words - after all, its a still just a child and we can never be sure how truthfull his words may be. Others said that way back then when that child was actually a child, there was less media so it would be not difficult for a child to resist it. And there were some who claimed that the conscious choice that I was so amazed with was none as such, but actually the repetition of parents' actions by child - he saw them carry out that process and repeated it.
Then the T.A. cut in and told us to move on because we were all getting carried away and excited (well, I was getting excited - not carried away, though because I knew what my point was).
But now that I think on it, I still see that episode as a good thing: even if the child was merely copying the actions of his parents, those were good actions, and they will have good results. And, as was pointed out in a post-tutorial conversation with a good friend, what kind of teachers will be those who advised me not to take the words of the child seriously? And of course, once and again we witness the proof: the media control by children - their own control of what they watch, hear, listen to, etc., their making of better choice - begins (and ends) with parents.