When a ball lies in a hazard you have addressed the ball as soon as you have taken your stance- because you are not permitted to ground your club in a bunker.
If you think it's hard to meet new people, try picking up the wrong golf ball. ~ Jack Lemmon
Taking a Drop:
A ball to be dropped under the Rules must be dropped by the player himself. He must stand erect, hold the ball at shoulder height and arm's length and drop it. If a ball is dropped by any other person or in any other manner and the error is not corrected as provided in Rule 20-6, the player incurs a penalty of one stroke.