Yesterday I had an unfortunate accident involving my left wrist, and consequently have been wearing my Watch on my right (dominant) hand all day today. It hasn't been the best experience; I'm a huge klutz, and I've been terribly worried about banging it into things. ...Which is, of course, exactly what happened. I was preparing some flatbread for the oven, and I managed to rub the corner of the Watch onto the tinfoil as I was spreading flour across it. The tinfoil tore, and to my absolute horror, rubbed off onto the glass of the watch face! The corner of the Watch was now a bright shiny silver. In a panic, I tried to scratch it off with my fingernail. No dice. Afraid of using anything more abrasive (like a knife or a needle), I thought maybe continuous pressure might work, so I removed the bands and spent a few minutes rubbing circles onto a piece of printer paper. To my eternal relief, the colour began to fade away and the glass is now transparent again. There is a very, very faint silver shimmer when viewed from a certain angle, but only if you are trying hard to see it, so I think a little more rubbing will take care of that completely. There are no cracks or scratches, not from mashing the face into tinfoil over my glass electric job, and not from the five minutes I spent rubbing it onto the paper, so I'm pretty happy with how the Sport's glass is holding up. Anyone else had a near-miss with their Watch glass?