Tell me how you reacted when someone elses errors were impacting negatively on your job.

Interviewers are hoping to hear that you react positively as a team player during times when you are impacted by another person's errors. Think about a time this happened to you, and you had a pleasant reaction. Tell the interviewer what error the other person made, and discuss how the error impacted you. Next, tell the interviewer that mistakes happen, and you just did what needed to be done to ensure everything was correct on your end.