John_B
Grasshopper
I struggled so hard to master this skill in my OW class. If not for the patience of a certain divemaster I might still be in the shallow end of the pool, with my face in the water, practicing mask removal and clearing over and over (and over). 
But a funny thing happened early on in my dive "career". I had descended a down line to a wreck when the buffoon directly above me crashed into me, full steam ahead. I managed to keep my regulator in my mouth, but my mask went flying (floating?). It was chaos for at least a minute or so, while I managed to get my mask back (with help) and get it back on my face and cleared. I can't imagine how I would've reacted at depth if I hadn't worked on this over and over (and over) until I had mastered the skill. That's when I first understood that OW skills are really just basic survival skills underwater, and how wrong things can go in an instant. For everyone who says "it'll probably never happen", they may be right, but you never know when you'll need it and wish you'd practiced it.
Fast forward to today, anytime my mask fogs up, I just take it off, rub my fingers over the inside of the mask so both sides of the glass are the same temperature, and put it back on my head.

But a funny thing happened early on in my dive "career". I had descended a down line to a wreck when the buffoon directly above me crashed into me, full steam ahead. I managed to keep my regulator in my mouth, but my mask went flying (floating?). It was chaos for at least a minute or so, while I managed to get my mask back (with help) and get it back on my face and cleared. I can't imagine how I would've reacted at depth if I hadn't worked on this over and over (and over) until I had mastered the skill. That's when I first understood that OW skills are really just basic survival skills underwater, and how wrong things can go in an instant. For everyone who says "it'll probably never happen", they may be right, but you never know when you'll need it and wish you'd practiced it.
Fast forward to today, anytime my mask fogs up, I just take it off, rub my fingers over the inside of the mask so both sides of the glass are the same temperature, and put it back on my head.
