As for the Shane or Amos question, they both exist in your mind.
Does that make it any less real?

Harry Potter: "Is it real or does it only exist in my head?"
Dumbledor: "Of course its real Harry, even if it only exists in your head."

In a way your words are deeds or actions. Your parody theroy that you are singularly respondsible, is a funny philosophic mistake.
But you already knew that. We all do.