OK a question raised in the wake of Tiger moving his ball trying to remove a Loose Impediment.
You get to your ball down the left side of the fairway near some trees which do not interfere with your swing. Your ball is on the fairway but sitting on some leaves and a couple of small twigs. As you try to remove a twig behind the ball that would come between the ball and club if you were hitting to the green, the ball imediatly moves so you stop and swear probably

Knowing you have to replace the ball under penalty of on shot do you set it back up against the twig and hit or do something else?