I dare you to refute this.
However, I'm interested in the flip side of this phenomenon.
I believe that when we write, we usually write better versions of ourselves or others. We write how we wish we had handled something, what we wish we had said to a romantic interest, etc.
Have you ever been influenced by your fiction? Have you ever found yourself responding to an event and thinking, "My main character would have said/done that." Were you able to pat yourself on the back because the fictional version of you rocked a situation for the better?
Or did researching a certain job or hobby for one of your characters end up convincing you to take up that hobby? What about a charity your character championed? Did you start supporting the same charity as a result?
I'm debating on formulating a new writer's quiz, and based on the comments I receive, I'll know better how to word the questions, so don't be shy!