When Otis and Katie are in common room talking, you see Mounch and some others sitting at a table in the background. Then Mounch walks into the room with the rest of the group.
The car crash involving the pedestrian is grossly exaggerated. A pedestrian would not cause the amount of damage to the front of a vehicle as was shown. Next, when a pedestrian is hit, they do not end up directly in front of the vehicle as was shown. They go over the hood and into the windshield or are deflected off to a side.
When Foster listens the heart of the fallen man in the accident, she didn't have the equipment in the ears.