The hit and run has the highest chance of success when the batter does not regularly swing and miss, when the count does not disadvantage the batter if he takes a terrible swing, and when the runner is fast enough to take second base even if the batter swings and misses. The most common reason why hit-and-run tactics are used is because the baserunner gets away with a stolen base. This happens when the catcher either fails to catch the ball cleanly or throws at the runner's foot while he is in motion. If this occurs, the umpire should call "stolen base" and signal for the batter to go to first base. While this is happening, the runner can be pursuing another baserunner or he can return to his original position. If the catcher gets a hold of the ball but doesn't have time to throw, then it is considered an automatic double play. In this case, the batter cannot be charged with a foul tip because he had no knowledge that the ball was going to be thrown at all. Also, if the batter makes contact with the ball outside of the strike zone but within the field of vision of the pitcher, then it is considered a fair ball. The batter has the right to continue with the next pitch or require the pitcher to wait until he is ready to bat again.