Here's The Harpy falling asleep at the bar...

     She is an annoying woman, and only talks to me when no one else wants to.  I don't even want to talk to her because she never listens.
     It's never a dialogue with her, and always a monologue.

     Anyway, I looked up 'Harpy' on wikipedia, and she fits that word.

     Here is another annoying person...

    

     They call him 'Woody Woodpecker Laugh Guy' because of his laugh.
     I don't like him because he is a control freak, and always messes with the words on the chalkboard, wiping letters out to change meaning.
     He takes but does not give...ever.