Explanation:

An interviewer will ask you this to see how you deal with a difficult situation or if you have had difficulty working with a manager. He or she will also ask this question to see how you view your relationship with your boss or other authority figures.
Don't Say It Never Happened: Interviewers don’t want to hear that you never correct a boss; this is unrealistic, and a sign that you don't think for yourself. They do want to hear how you did so politely and diplomatically.
Use an Example: If you have dealt with a situation like this with a former employer, use that as an example. Explain what the situation was, how you addressed it, and the ultimate result. Answering this question like you would a behavioral interview question will provide the interviewer with a concrete example of how you handle these kinds of situations.