Seeing how you're here reading this site, I'm going to presume you've cracked a few eggs in your life. And that you know that even the best of us sometimes accidentally break a piece of shell into the mixture. You also know that that little piece is excellent at eluding your digging fork or fingers.
Here's a little tip of the day! The trick is to use another piece of shell to scoop it out. The shell contains calcium carbonate, which gives it the sharpness to easily pierce through the slimy protein liquid.