Ok, I am in no way condoning what she did at all. But she is from China. In China, this is acceptable (as far as I know) and happens frequently. She probably does not understand that this is not considered acceptable behavior in other parts of the world. Should she have done this? No. Does she need to be informed that this isn't acceptable? Yes. But try to have some understanding about where she is coming from.
Yeah, I did think that. Also when I told DH last night he said the same thing. He works with a lot of Chinese clients and knew this to be true.