Maybe the maid use a special way to 抱 BB, or use other special way to ..........
One of my relative (old man) said that in the old days, some chinese maid i(milk mother) in the countryside have many ways to take care baby. He said that one condition had happened in his relative home(a rich family). When the milk mother went back her home for vaccation leave, no body can make the baby sleep.(before of course the milk mother can manage him lar) Every night, the baby cried longer and longer, till tired then sleep. At the end, they found that the milk mother used to light touch the baby 's anus, to make him sleep!!! That why no body can make the baby sleep except the milk mother. My relative said that in the old days, each milk mother had their own special way to cope with the little baby, to ensure their job security.
I raise up this is not threatened u, but maybe u can find some reasons by observation. Or don't u think that u spend little time to your baby?
How long u use this maid? How old is your baby? Will your baby sleep with the maid?
Can you arrange more time to spend with your baby alone (or with your hubby), everyday after work & weekends, assign your maid to stay at home cooking for dinner, doing housework... you can bring your bb to the garden, supermarkets...... as when bb is at outdoor, many other things to attract them, so they will normally be very curious about the new things and stop crying. Don't worry.
TRY NOT TO BRING YOUR MAID, because if your bb see the maid, he will definately cry for her .
You can have time to develop a closer relationship with your lovely.
**This is just my experience, as my baby alway only ask for me to bo bo and cry if i pass to my husband. My husband was very depressed at that time. So, I encourage my hubby to bring him to the garden / shops (just 2 of them)... for around 30-1hours everyday (as regular as possible). So, my bb now adapt to be "bo" by my husband and willling to stay alone with him lu. My husband is so now...