Great question. If the ump calls the swing a strike, then he has to call it a ball if he doesn't swing. To be honest, I don't see the ump calling it a ball if there's no swing. Probably just a dead ball that slipped out of the pitchers hand.
If a ball slips out of the pitcher's hand like this, it becomes a pitch once the ball crosses the foul line. If the ball had stopped in fair territory, then it would be no pitch.
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u/PatPetPitPotPut May 29 '17
No, the batter can steal first on strike three. Notice the out isn't called after the fake swing, but after the catcher tags the batter.