4. "I'm A Fake" - Sherlock
Before doing his famous jump in The Reichenbach Fall, Sherlock shares an emotional conversation with Watson and begins to make Watson believe that he is a fake. That every time he showed so much brilliance, it was completely fake. Watson of course, doesn't believe any of this and tries his hardest to convince Sherlock to get off the building and come back down to him. We all know what happens next, as well all begin to cry as Sherlock says his last words and jumps off and Watson runs over to him in complete shock and panic. "He's my friend." Utterly heartbreaking.