Honorifics:

I am so dazzled when filling out a form abroad--Europe or India etc--and there is a choice of honorifics...Dr, Professor, Lady, Rev, Sir, Miss, Mr. and so forth. It's tempting to borrow one.
I am not happy, however, that in US often the choice is between Mr and Ms.
It's all very politically correct as Ms is supposed to cover all honorifics for women. The only problem: I don't use Ms and never will. It sounds horrible...Mizzzz-erable...for starters. And it's a made-up abbreviation from somewhere in the sixties when someone had the 'great' idea of avoiding the distinction between Miss and Mrs.
I don't use any honorific at all. If there's a 'choice' on a firm, I ignore it.