This happened in our game last night. Runner at 3rd. Batter swings and misses for strike 3. The ball pops out of the catcher's glove into the air and the batter's bat hits the ball on the backswing, sending the ball toward the 3rd base dugout. The batter takes first, the runner at 3rd scores as the catcher has no chance to retrieve the ball and make a play. We looked in the rulebook last night and couldn't find a clear answer. The umpire ruled that there was no interference.