Must specified. My old maid took whatever she liked (not only ate at my home but also in holiday).
Sometimes, when we want to eat or drink, she already ate half or all. I bought her to the agency about this matter, she said "I bought". SHAME SHAME SHAME
Now when I hire a new maid, I specified what she could eat what she could not eat otherwise COMPENSATE and asked her to acknowledge receipt.
I must let her eat full but not let her eat and drink anyting at my home.
Except for breakfast / lunch / dinner, my Yan Yan doesn't eat. Until now every thing I eat she can eat. Sometimes I buy afternoon tea for her but she said she is too full and cannot eat.