For this one, I would be travelling across a foreign country. It could be the US, or Canada, or Europe somewhere perhaps. I would realise that I was lost and stop at an expensive looking house for directions, not realising that it was a private home for training exotic maids. Unknown to me, a prospective one was being sent by a master or mistress, but changed their minds, and didnt tell the owner of the home. I would have no idea what it was used for, and would be kept there against my will, punished whenever i tried to escape or protest that I wasnt there for maid training.
Once the owner finds out, a month or two would have been past, and to protect against being sued, the owner would keep me there as theyre very own maid.