I find that when I am passionate about a job I can keep plowing forward and will crash later. If I'm not passionate or invested in what I'm doing I can push through, I just won't be as miraculously productive. I work at a theater costume shop during the holiday season, and I absolutely love this job! I will be going strong after 7 hours of straight work, say, and encouraging the other employees to push forward when they start getting tired.When I work at the school cafe, I push through and get done what I need to, but do not have quite the enthusiasm as at the other job.