What happens when a ball is droped and it hits the ground?

There is alot of answers to this questions. If the batter is inside the batters box then it is a foul ball even if the ball hit fair territroy first. If the batter is outside the batter's box then the batter is called out. But if the batter is bunting with a 2 strike count and touches the ball inside the batter's box, then he is out because it is considered to be a fould ball and a two strike foul ball bunt is an out. Also if the batter bunts with a one strike count or less and touches the ball inside the batter's box then it is a fould ball but again if he touched the ball after bunting the ball outside the batter's box then it is an out.