A player cannot catch and shoot in 0.3 seconds or less from an inbound pass, according to the rules. However, there is no rule that prohibits a player from shooting while on his or her way into the court with the ball. In addition, players can use their own body to block shots. For example, if a player believes he or she is going to be hit with an inbound pass, they can slide their hand or arm up toward their head to block it. If they do so quickly enough, they can still shoot the ball. Finally, players can cheat by looking at the referee's whistle. If a player sees the whistle coming out, they have enough time to get back on defense before it hits the floor. The only real penalty for this type of offense is a foul. A player who shoots without having the ball passed to them has to wait for the next dead ball after they've been fouled. This could be free throws or another shot for the opposing team. There are times when this behavior may result in a technical foul or even a suspension for excessive use of this tactic.