Leonard this is so true.I remember one of my students asking why, if junk food was so bad for us, why was the staffroom table laden with junk.

"it's someone's birthday," I answered. "And I don't eat that stuff. Besides, you're right. We should not be eating it at school."

"But,"she answered, " if it's so bad, you shouldn't be eating it at all."

I had no comeback. She was right.Poor, poor, modelling. :)