The longest job I have been in would be that of a medical transcriptionist.  In calling that a job, I will think twice, because I never felt like it was one.  It was more like a fun thing for me.  Doing file one after the other increasing the line count and money in your account felt like a game of, say Farmville.  It was metaphoric to a game in which you perform a task and accumulate points.  I never felt the pressure and loved the job.  If you are a medical transcriptionist too, I am sure you will know what I mean.