Tear Jerker / Avatar: The Abridged Series

• The finale to his Failed Comedian Amon series. Just just watch it and you'll see: Amon gets thrown out the window by the Avatar, and it flashes back to him talking with his lieutenant about how the Avatar ought to be the only person who could laugh at his jokes. Cue his mask floating up...
  Amon: "Dreams don't ever really die lieutenant. You take them to the grave."