That was a fairly abusive way of disagreeing. If you think I'm so stupid for repeating what a chemistry teacher said about a chemical, perhaps a politer way of pointing this out would be to point to some of the overwhelming evidence you feel I should have noticed sometime in the last forty years, and maybe you could find it in your heart to do so without calling me a bad, stupid, parroting, moronic moron, which I personally feel was a little over the top.