As a new user of Fiction Branches comes along, it decides it doesn't like the bad men that made the other users before it go away. So, with its infinite authoring power, it interjects.
Suddenly, not ten seconds after having made his wish, the guy who had made the wish suddenly saw a person of indeterminable gender standing in the middle of the room.
"Hey! I wished you away!"
"I'm new, and I've decided you're detrimental to the storyline. So, off you go. Story... RESTART!"
And with a story, the stone was back in Jon's pocket, Jon was still walking back to his house, Karyn was walking to her house, and the bad men were currently tasteful furniture in a local furniture store.
Ah, the infinite power of the authors. But what of Jon?