I am a private person who never asks others intrusive questions or questions that may be probing yet, I have had all kinds of nonsensical and offensive things asked of me, such as how did/do you make your money? Usually, the most probing and intrusive questions come from complete strangers.
Also, while shopping recently, I experienced the absolute horror of a cashier asking my boyfriend if I was wild in bed. We were buying household stuff. How does one make "small talk" about the customer's sex lives? Make no mistake about it, she was a complete stranger to us both, in both cases the women asking were decades older than us both. Maybe it's an old woman thing? This was so rude and inconsiderate and she said this with people's children within earshot. Some of them looked on in shock.
My boyfriend and I are reserved and private so we both were offended, no matter what we said or did she kept asking...three times! What does a 60+ year old woman need to know about the sex lives of strangers? I simultaneously wanted to smack her and get her fired. These intrusive experiences bring new and shocking perspective on the saying "I have never..."