"Employers are looking for auditors who are comfortable with internal procedures and regulations to ensure the quality of their audits. Expect to be faced with many technical questions that test your mathematical and accounting knowledge, as well as your experience with auditing systems. In addition, prepare to role-play scenarios where you must deal with stressful tasks, such as angry clients, under-performing colleagues, or a work load too large to handle. Ultimately, employers are looking for auditors who are passionate about ensuring that others are complying to practices and work well in teams to accomplish goals."
Had I ever been in a situation where I was dealing with an awkward client.
I told instances from past jobs where I had been and gave lots of examples.