annoyed

What or who can make you feel annoyed. And why are you annoyed? I got easily annoyed when i am busy and some of my friends chat with me asking me nonsense questions and repeated instructions. I have a very little patience when i am tired and busy. So at this point i try to warn all of my friends to be extra good to me or i could also warn them that i am busy as of the moment and dont like to be disturb so i can avoid arguments. In this way they will learn how or when to disturb me.lol well it works well for me.