"Oh, look how lowly he's positioned himself, like a completely different person from the one at the entrance just now. If I hadn't seen it with my own eyes, I would hardly believe it."
"Someone reported that you were especially disrespectful to someone at the entrance earlier. Today, I called you here to discuss this matter. Our restaurant does not tolerate such behavior. Even if a female customer is wrong, you cannot publicly criticize her.
We've discussed all these things in training, have you forgotten them? I'm very disappointed in you. I've forgiven you over and over again, but you keep making mistakes. Do you really want to see this restaurant go under? What has our product ever done to offend you, that you target me? It really breaks my heart."