I don't worry about you know or don't know you. But I am telling you when you talk with others, you need to respect others! If someone asked you something, you should answer the question before ask your questions! Even if you don't want to answer that question, you should say, 'Can I don't answer it?' I don't feel comfortable to answer it. Not ignore other's question, just go ahead ask your questions! That's rude, no manners!