During our school days we trusted our teachers implicitly. The word of our teachers equated to those of God. However, looking back from a better informed stand point, we are able to recognise we were duped. Take science lessons for instance. Like many school children before and since, I faced the prospect of learning the periodic table. What a sham that turned out to be. It is now become obvious that sulphur is just powdered egg. That is probably just the tip of the iceberg. Who knows what cobalt really is!