If someone is genuinely seeking answers, they typically won't be confrontational or disrespectful. If someone is trying to pull you into a debate that isn't edifying or if they are being rude, most often the person is only doing so to try to inflate their own ego. In those cases, it’s usually best to just not engage them, even if they engage you first. Do not allow these people to trip you up. Fruitless debates never end well.
The eye sees only what the mind is prepared to comprehend. Giving the correct answers to someones delusional thinking causes them to become a bit offensive.