ata AIG changed the interviewer at the last moment, and the interview started 15 minutes late. The interviewer was rude. He asked me to write an aggregate query, which I did. Then, he questioned me about the use of `preserveNullAndEmptyArrays` in the query. I explained it multiple times, but he kept asking the same question, not understanding my explanation despite my efforts. Next, he asked me to identify and figure out a memory leak problem. As I was explaining, he abruptly cut the call and ended the interview after just 15 minutes. It felt like he was in a rush, perhaps needing to catch a train, and was forced to conduct the interview against his will. Additionally, he asked for company restricted internal information. This is against company policy, as we are not allowed to share such information. The whole experience was very strange and unpleasant