I applied online. Received an email later to schedule for an interview. The interview went well, however, half way through I was told the position wasn't open and they were just conducting interviews for their candidate files. WOW. what a way to get my hopes up for nothing. Not to mention I wasted precious gas! I would'nt have been so p***ed off if a phone interview was held instead.

Interviewers who ask this question likely want to know how you acted in a real-life situation in which you had to make a sacrifice to stay true to values. If you can tell a relevant, honest story that shows you making a moral decision even when it was hard, you can assure the interviewer that if a similar situation arises at their company, you would still do the right thing. Think about a situation you can share ahead of time to make sure you tell it accurately and effectively.