If it rides two or more rails, each rail will count as a cushion. If the ball remains on top of the rail, it is considered a jumped ball, which is a foul, and player's inning ends. If in playing a shot the cue ball leaves the playing surface and rides the rail or cushion, regardless of the number of impacts on that cushion, only one impact will be allowed. If a player has pushed or shoved the cue ball with his cue, it is a foul and player's inning ends. A push shot is one in which the cue tip remains in contact with the cue ball after cue ball strikes an object ball, or when cue tip again contacts the cue ball after cue ball strikes the object ball.
Double stroke is similar and occurs when player's tip or cue shaft hits cue ball twice.
If a billiard is made, it shall not count, and the player's inning ends. All kiss shots are fair, whether they deprive a player of an imminent score, or whether they assist in a score. Miscues shall not end the player's inning, unless it is construed that the player's ferrule or shaft also touched the cue ball. Not all miscues are fouls, and if a billiard is completed in the miscue stroke, it shall be counted and turn continues. A game is official when a player scores the number of points designated as constituting a game, even though the opponent has had one less turn at the table.