When a runner attempts to advance on a wild pitch or a passed ball, it is NOT a steal attempt whether successful or not. The exception is if he was already stealing on the pitcher and THEN the ball was wild pitched or passed, then he gets credit for a stolen base. If he attempts to advance after the wild pitch or passed ball and is successful, runner is not credited with a stolen base. if he is caught, he is not credited with a caught stolen. Same as stolen base if he is stealing prior to the wp or pb, and is thrown out, then he is credited with a caught stealing.