Continuity mistake: When we watch Scully typing from behind, the text she types is ahead of the text we saw at a distance in the previous shot. (00:15:15)
Continuity mistake: During the conversation with Mulder, in the front shot the Deep Throat tilts his head to the left while in the back shot his head is tilted to the right. (00:26:10)
Continuity mistake: When Scully gets out of the car, it is parked much closer to the curb than in the previous shot. (00:30:35)
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