Answer:
They have too much times on their hands so they go and annoy others to keep themselves busy and distracted. They also are very curious about everything and they let it take over them so all they do is try to explore things and ask questions which leads them to come off as annoying.
This question does not make sense. If you are positive then you legally have to clarify that you are HIV positive. Please ask questions that are clear and concise. If it is a riddle then please do not put the question into the health category. Thanks.
No, it's because we need to breathe. Your body needs oxygen. Air pressure has little to nothing to do with it as far as I know.