Tell me about the most demanding customer you’ve experienced. Tell me about the most demanding customer you’ve experienced. I was working at a nursing home as a social worker. There is one protector who can’t visit frequently. she asked about her parent’s condition that a pressure, a medition, a vital sign and so on. It was hard time to remember many patient’s records every time when she phones me. I always said that i’m sorry I have kept you waiting. so I decided to make a individual records every months. I normally painted a graph, attached photos and sent files. After receiving them, one of the clients family sends a letter to me as a  thank you. she was impressed with my documents which was  very detailed about the clients characteristics. Later she satisfied my service and she never complained that.