In the episode where we first meet Mobilaje, Dr. Greene is approaching him lifting some boxes in the trauma hallway. In the background, you can see a doc looking at an x-ray. A nurse approaches her, and they look at it together. We cut to Dr. Greene & Mobilaje talking, when we get to the same shot as before, you will notice that the same nurse is approaching the same doctor, again!! If you have a good eye, you will catch this one!!!