Rule: 1-4/1: Player Distracted by Ball Dropped by Another Player Mis-Hits Ball

Q: As A was making his back swing, B accidentally dropped a ball, which rolled within six inches of A’s ball. The appearance of the dropped ball startled A, causing him to top his shot. In equity, should A be permitted to replay his stroke?
A: No. Distractions are a common occurrence which players must accept.