And also fear of getting blamed when something goes wrong. If something goes wrong and you were working 80-hour weeks, you can say, "We did everything possible

And also fear of getting blamed when something goes wrong. If something goes wrong and you were working 80-hour weeks, you can say, "We did everything possible and still the ship sank." If you were out having fun most of the time and the ship sank, most of the people standing around are going to blame you for laziness and inattention.