Continuity mistake: When Mulder helps Max lie down he notices the scar behind his right ear but when he tells Scully about it later he says that the scar is behind his left ear. (00:29:45 - 00:31:00)
Continuity mistake: Howard Graves' tombstone states that he died on the 5th of October, but the opening scene's date stamp says the 22nd of September, when it was supposed to be two weeks after Graves had died. (00:11:40 - 00:19:55)
Continuity mistake: When Tooms is in the cell right at The End, we see when his food is being brought over to him on the tray that there is a drink and a bun, when the shot changes to the other side of the door the drink and bun have swapped sides. When the shot changes back to the other side of the door, the tray is now the other way around and then when the shot goes back to the other side the whole tray has now disappeared. (00:39:40)
Continuity mistake: When the cup falls over when Lauren wants to see Mr. Dorlund, the box of tissues disappears in the last shot. (00:08:20)
Continuity mistake: When Scully is in her room after the autopsy, we see the x-ray attached to her lamp. When we first see it, we can see the letters LD on it, yet when the shot changes back to the x-ray after Mulder has gone, we can only see I, presumably the other x-ray is now overlapping it. (00:15:20 - 00:16:10)
Continuity mistake: When Mulder and Scully are driving after their plane lands, we see at one point that Mulder has his left hand on the wheel and he is eating a sunflower seed with his right, yet when the shot changes he's driving with his right hand and eating with his left. (00:09:45)
Continuity mistake: In the close-up shot of Mulder just before he shoots Barnett, his black ear piece disappears. (00:42:15)
Continuity mistake: At The Beginning when a man says: "We're not who we are", he says it differently when Scully watches the tape. (00:01:20)
Born Again - S1-E22
Continuity mistake: When Scully is doing the exam on the dead guy on table, he blinks and breathes. (00:12:05)
Continuity mistake: When they find the felled ancient tree, the stump that Mulder clambers up onto to investigate the growth rings has a distinctive crack at the center and the growth rings are irregular in shape. However the stump that we get a close up of has no crack and regular circular rings. (00:18:20)
Continuity mistake: Mulder says that his sister “just disappeared from her bed one night” which is not true, because later visualizations of that moment show that Samantha was abducted while she and Mulder were playing a game and watching TV. (00:26:30)
Continuity mistake: When Colonel Belt is going to bed after the press conference, the bottle on his side table moves between shots. (00:25:50)
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