In class I always teach to keep your mask on until back on the boat. The reasons being falling off the ladder back into the water, waves hitting you in the face unexpectedly, and losing your mask to the deep. So in class I have students keep their mask on to reinforce positive habits. I include that divers who are anxious or panicked may put their MOF. I've seen it countless times and it gives me pause as well it should. Being aware and intervening early can short circuit a bad situation. Something simple like adding air to the divers bc can make a big difference in losing a diver/customer to a bad experience.
---------- Post added February 17th, 2015 at 09:49 AM ----------
I can't understand why some would say this is stupid, silly, or ridiculous. It's real and happens. You may not be aware that it happens or lucky to not have it happen to you or your buddy. And that's fine, and you can dive any way you want. But diving is a sport that many can enjoy with different levels of experience. I realize that not everyone who puts MOF is in peril. But it is a clue that shouldn't be dismissed. And I would rather my buddies, new or old, not do it out of habit. It is a natural act, but that's where training comes in.
It's natural for me to eat three plates of spaghetti too. But maybe not the best idea.