If you are friends with Harry Potter and you have been so for many years, and you find out that he is the chosen one,, try listening to him. Like when THE CHOSEN ONE who has been right for seven years says he thinks someone might be evil and saw them doing evil things, don't say, "I'm sure you were mistaken, Harry."
Better still, Harry, how about saying, "IDIOT! I am the chosen one! Don't mess with this perfection! I am always right and I winn every Quiddige game, so let's start paying attention to the scarred wizard over here and put this shit to rest!. Damn! I didn't want to have to go off like that, but ya'll made me get my wand up!"
That's the Harry Potter Rule.