Problem
I had sent a PDF file to a printer for printing. Then I was waiting for a person to finish her priting job. Unfortunately, an error occured, and she left without saying a word.
Result
If I press the “Stop” button to continue with my work, she wouldn’t be able to know what’s wrong. Not hoping to get into any trouble with her, I had sent the job to another printer. I had finally got my copy of the document and returned home.