I have learned the hard way to hold on to shares from a company that you believe strongly in! I bought Infratil when they first listed but was persuaded by a stock broker to sell them a few years later when he said they "had done their dash" even though I thought they had great potential. So I was very pursed-lipped when they continued to climb well above the price I sold them for. Now I take responsibility for my own decisions whether to buy or sell. As I said before I believe in the Blis K12 products as I found it worked for me and is a far better alternative to alcohol-base mouth wash formulations like Listerine etc which work temporarily and mainly disguise "bad breath" problems and do not deal with the root cause. There must be a huge market out there for this product (and M18), although it would take time and money to break into this when competing with established players. I have a medical technology background and the scientific background to the product development appeals to me. I enjoy reading Simla's informed comments too! It is interesting to track the number of Google hits when you key in "Blis K12" - that is using the " before and after - currently 114,000. yes, they are still speculative shares, but hey, not boring and VERY interesting to watch!