You would think that after a couple of cases, Agent Scully would be emotionally prepared to deal with the vast amount of crazy shit that she and Mulder encountered.
But no, every fucking case surprised the hell out of her and still she remained skeptical about the weirdness that skulked about the universe regardless of how many times she witnessed the inexplicable.
The following video is a super-cut of all the times Scully yelled/moaned/whispered "Oh My God!" while investigating mysterious crap like the Fluke Man or whatever.
Source: Laughing Squid