Visible crew/equipment: When Ben Drake is walking in front of the paintings in his office, for a short moment one can see the camera setup and the cameraman reflected off the first painting. (00:01:40)
Visible crew/equipment: When Brad is showing Mulder and Scully the video tape in his house, you can see the crew reflected off the TV screen. (00:12:50)
Visible crew/equipment: Mulder is talking to the computer programmer in the prison. The shot starts on the bars and pulls back. A significant shadow caused by the camera is visible on the right side of the frame.
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