I've seen how people treat their maids, and even how spoilt
children are disrespectful and mean to the maids. A lot of them are
very badly treated by their employers and it's not hard to see why
a few of them would crack under such circumstances. Not condoning
their misdeeds, but saying that sometimes, they've been abused till
breaking point. 
I've witnessed how a patient's relative made her maid stay put at
the hospital 24/7!!
The poor maid sleeps in a small couch, all curled up
and sooo uncomfortable, every single night! And every few hours,
she has to wake up and check on the patient, even though the
patient is asleep and there's nothing she can do. She bathes in the
hospital, eats, sleeps, lives her life in hospital 24/7 and does
not step out of it until the patient is released!!

I felt sooo sorry for the inhumane treatment she suffers that on my
shift, I often get her to go to sleep, assuring her I'll wake her
up if her employer turns up.
I was sooooo tempted to report her employer!! 