Once I turned 18, I worked every summer off from college at a water plant.  Generally, I was an office worker or a laborer.  Mostly, I just did whatever was needed.  Clean and polish.  Sweep gutters.  Help with the sidewalk cleaning.  Take out the garbage.  Things like that.  Of course given that I worked for a government bureaucracy, there wasn’t really that much work to be done.  On a really busy day, I probably ended up doing only about an hour and a half of actual work.  I’d spend most of the rest of the rest of the workday just making it look like I was doing work.  I wasn’t alone.  Everyone at the plant from the engineers to the laborers to the office workers all did the same thing.  You would get the odd office worker who had nothing to do themselves so they would go out of their way to make you were doing something.  They’d watch and scrutinize you and report to your supervisor if they thought you were slacking off, which they were since they had better things to do than follow me around.  One strange women even used to set traps in the bathroom to make sure you went in there and cleaned.