(IT'S) NONE OF YOUR BUSINESS!

It is nothing that you need to know. It is none of your concern. (Not very polite.) •

Alice: How much does a little diamond like that cost? Mary: None of your business!

•

John: Do you want to go out with me Friday night? Mary: Sorry, I don't think so. John: Well, what are you doing then? Mary: None of your business!