Heh heh. Fear the Mary-Sue.
What if Harry shook Draco's hand? What if his best friend was Draco, rather then Ron or Hermione? What if he was put in Slytherin? ...
*C.2 Added!* Harry tells Draco to hide whilst Ron and Hermione visit, as neither of them know they're together, and Harry's scared he'll loose his friends. What he doesn't know is that Ron has a secret of his own, and it's Draco's job to find out...