It's pretty easy to be a sideline quarterback when talking about other peoples situations and how you would handle them. When breathing compressed air underwater then sucking in water from what you "Think" is your "Air Source" then that is a OOA situtaion and how you handle it is alot easier to say what you would do while clacking away on a keyboard. There is plenty of time for you to stop and think, backspace, change spelling, add a smiley face, ect. But Out of Air is "Out Of Air" Just because you have 2000 PSI in your tank with a secondary regulator starring you in the face doesn't mean that in this situation she wasn't out of air, even you could handle yourself any differently under panic or diress. Fortunately this situation worked itself out OK. Maybe we should change "OOA" to "OOCA" Out of Compressed Air.