Question: What if a Pin Falls Before My Ball Gets There?
Answer: If, while in the process of making your delivery, a pin moves or falls down before your ball reaches there, you must call a dead ball and take another shot, without penalty.
A pin could fall for a lot of reasons, some more ridiculous than others. Sometimes, pins are wobbling after the pinsetter places them on the lane, and if you don't wait for them to stop, one might topple over before your ball gets there. Or, in a rare instance, a bowler on an adjacent lane may take the worst shot of his life, throwing his ball onto your lane and knocking down your pins. In that case, you get to take another shot and that other bowler becomes the butt of jokes for a long time.
