Visible crew/equipment: As Scully rolls down the stairs with the killer at The End of the episode, once they reach the bottom a hand pops out from the left side of the screen.
Visible crew/equipment: Near The Beginning, Mulder, Scully, and another man are walking through a graveyard. The camera is following them to the right passing head stones. The crew can be seen reflected in a black shiny head stone as the camera passes.
Answer: As he stated many times throughout the series, Mulder needed Scully to be sober and skeptical. Whenever Scully's skepticism wavered and she started questioning her own rationality, Mulder would try to restore her sense of skepticism, because he needed her to be clear-thinking.
Charles Austin Miller