It's really interesting talking about all this! I got quite a response over at the community I asked, overall they said that it was used a long time ago, nowadays not so anymore, and mainly in the health business, for people who are or feel superior to others. Like nurses and patients.

Miss O. sounds rather cute!

I stumbled first about "the wife" in an action figure forum where someone said that she should rather not find out how much money he spends on his figures. Maybe it was said in jest but if not it makes me rather sad, that he can't share what apparently is important for him. Naturally, everyone there assumed I was a boy as well ;)