I got a yellow Case cv pen a couple of week ago and the shield fell out right when I took it out of the box. I glued it back in with some cyanoacrylate and noticed it was a little proud of the scale. There was enough edge riding high for me to pop it out (after just a minute), but it seemed to some out rather easily. It probably just hadn't fully cured, but I decided to use two-part epoxy after that. I deeped the hole (Delrin's easy to remove) and reglued the shield, and now it fits perfectly. It wasn't worth returning the thing, to me, since it was pretty easy to fix but I can see how Case gets some criticism from time to time on this shield matter.