Honestly, not all ppl mind those behaviours of what you have told about your maid. Some are really open minded to accept this. What more can you say!
Two years ago, I had a Yan who did even more than what your maid is now doing....she even targeted on my C6. Luckily my C6 is loyal and nothing happened. But a maid with such attitude and mind for sure brings evil into your house and that's not nice at all.
If you don't like such behaviour, (and so do I), jsut fire her right away!!