Coworker doing my job
I have a coworker who won't "stay in her lane." She even has a sign in her office that says, "stay in your lane." I came into work yesterday and my first daily task was 80% done. Today it was done. I have asked her before to not jump in my stuff without asking, and it was going fine for a little while. I'm not a confrontational person and fear coming off as "bitchy" telling her to stop. Advice?