This was by far the strangest interview I've ever participated in. With the prestige of firm, I was expecting to be grilled on company knowledge (which I was – make sure you know who is who within the company before you embark on your interview), but there were a number of other odd questions that I hadn't expected. I'm sure the purpose was to decide if I could handle a variety of unexpected, stressful situations but I was put off and didn't have any interest in pursuing the experience afterwards.