Yesterday, I went to the office I work at in order to prepare for my job.
※Notice that the time required for preparing for the job is not taken into account to the hourly wages.
But, my boss told me to help practicing interviews of a student. I played the role of the interviewer. The working time was about 45 mins, despite that my boss told me that it would last 15 mins at first. I wanted to complain to her about it only to give it up, because I thought it would flustrate her and that may make others annoyed.