So I recently visited my parents for a few days and during that time I decided to sharpen most of their kitchen knives because they were all butter knife dull. I got them mirror finish, hair popping sharp and over the next day or two both my parents ended up cutting themselves twice each because they weren't use to the sharpness. But towards the end of my trip I noticed that the knives I had just sharpened were back to having rolled and dinged edges and were completely dull again!! I was shocked and a little upset that my hours of work went down the drain so quickly. During lunch I figured out why. They were using a glass cutting board!! Who in their right mind would manufacture a glass cutting board!?? Who in their right mind would buy and use a glass cutting board!? I don't get it...what's the point??