Visible crew/equipment: When Scully says "This is rumor panic" you see the camera shadow following her on the lower left side of screen. (00:18:20)
Continuity mistake: When Scully arrives to investigate the kid who was crushed by the bleachers the time stamp says 5:10AM. It seems strange that the investigation would start the next morning, unless the high school holds basketball practice at 3:00 in the morning. (00:16:35)
Continuity mistake: While hugging detective White, in the first shot Mulder's tie covers his shirt's collar, but in the next shots the tie is hidden under the collar. (00:26:10)
Continuity mistake: The glass in the picture of Ryan Reynolds cracks as the casket is starting to catch fire. In one shot, which is wider, the glass has fixed itself. Cut to a closeup, the glass is broken again.
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