Jim Halpert is first introduced in the "Pilot." He is adamant throughout the series about his job as a salesman at Dunder Mifflin Paper being a temporary one, saying, "Right now, this is just a job. If I advance any higher, this would be my career. And if this were my career, I'd have to throw myself in front of a train." This outlook is most apparent in the elaborate pranks that he plays on his workmates, primarily Dwight, as well as his sarcastic remarks and facial expressions to the film crew and his provoking comments during often ridiculous employee meetings. However, he succeeds professionally and is consistently one of the best salesmen. This is presumably because, as Pam mentioned later, "everybody likes Jim."