Received a call for a person who does not work at our company and I don't know who they are. Was told that they worked there at one time. That's all well and good, but with the massive amount of turnover, I have no idea who the person they were looking for was. Got snotty and said that this was the last known number for them. I had to repeat 5 times that there was no one by the name they were looking for. They need to get a clue.