Any time you work with someone else, there is a chance you will disagree on something at one time or another. The interviewer knows this. It's human nature for people to have their own opinions. What is important to the interviewer is whether or not you are willing to compromise and work through difficult situations with your coworkers. Being unwilling to compromise or find alternative solutions to a dispute can affect everyone on the team, even if it is indirectly. Sharing a personal experience is okay, but do not embellish it to 'be the hero.'