We had our monthly tournament at Carlton Oaks today. One guy in our foursome hit a ball into the bank above a sand trap, and it came to rest against a rake on the bank. It was clear that moving the rake would cause the ball to roll into the trap.
I consulted with our handicap chairman, who was in the group behind us, and he gave the correct interpretation. Rule 24-1a says that a movable obstruction may be moved, and if moving the obstruction causes the ball to move, then the ball must be placed in the original position, and there is no penalty.