All of these "How it's Made" videos show immense industrial processes, but they usually include a number of jobs in-between stages that I definitely wouldn't wa

All of these "How it's Made" videos show immense industrial processes, but they usually include a number of jobs in-between stages that I definitely wouldn't want, eg: 4m00s. (the job isn't disgusting - but for the fact that the guy must do this for more than 15 minutes each day...)