Post All That Remains (watch for spoilers). Hawke's methods of distracting herself from grief are problematic. Anders' attempts to not be distracted by Hawke are doomed to failure.
Hijinks in Care of Magical Creatures. MWPP humour, pure and simple.
James Potter has just started his sixth year at Hogwarts. He's looking forward to exploring the school, playing Quidditch, and causing as much trouble as humanly (or inhumanly) possible. But Lily Evans might be more trouble than he's bargained for...
Peter Pettigrew's thoughts at the moment of betrayal.
Harry could tell they had rehearsed this conversation... -- Prisoner of Azkaban, Chapter 11
Remus' thoughts during the anti-dementor lessons.