some bun will steal rice or other domestic stuff such such as sugar, noodles, canned food etc, either sell them to others or consume when they are off. So keep on gaurd and I usually take stock from time to time so when they cheat , they will not so 'off guard'.
My ex-bun bun also stole rice (raw rice 白米). We thought that the rice consumption was quite fast but since it was not too expensive we didn't check. After she left, the next maid found a lot of rice and granulated sugar (沙糖) on the floor underneath her bed !!!