Pls don't wait till it's too late.
Interview a new one and make the change. otherwise, the more you suffer. This is exactly what the bad maids do to cheat us... I'm one of the victum happened on Apr 7, 2006.
Go and post every details of the bad maids so that we all can be careful when hiring a new one.
The link is as below.
Good luck and don't be angry on what the maid does because this is exactly what she does to make employers out of control.