Co-workers

It is sad on my day off I can be so completely fed up with my job. Actually, I guess it is not my job, but, my co-worker that has my blood boiling. I am so sick and tired of cleaning up her messes, finishing the jobs she never completes, and her throwing a fit to our boss whenever they give me a morning shift. I am really sick of working this person. She disappears for 30 to 40 minutes at a time. I am done being nice. I just do not care anymore.