What you do is split the event into the scene. Start point and end point of the scene is usually marked by an open door, and through. The brain considered the previous scenes are done and let the cut scenes.
What events will share a scene. The beginning and end of the scene often mark. By opening the door and entering. Considering that the brain previously done. And hitting them.
What will divide the incident scene. The beginning and the end of the scene, often mark. By the door and come through. The brain, considering that earlier scenes, finished, and to cut that out.