It totally blows me away that so many people care where I put my mask. I don't care what you do with your mask. I don't care if you put on your face, on the back of your head, on the side of your head, on your arm, leg, foot, pocket, goodie bag, or shove it up your a$$ (I've heard rumors that this is a great defog). Nothing you do with your mask will influence my dive in any manner. I don't care. You and your mask are none of my business and none of my concern. Therefore, me and my mask, or any other equipment, are none of your business. Keep your concerns about my mask/gear to yourselves, or we may find out about defog. Sometimes on the surface, I put my mask on my forehead, sometimes I take it off completely. There is an extremely high probability that I am not in distress, and if I am, let me be, let me drown, stay away from me. If your are an instructor or dive master, that goes double.