"... in stressful situations, people don't always think logically, and the average person doesn't necessarily understand the things that the folks on this board do. We need to be aware of that when we communicate with them."

That is very true. Just because WE know something (like oxygen isn't necessary unless you're over 10,000 feet), doesn't mean everyone knows it.

And when the flight attendant says to cross your arms over your chest when you slide down an evac shute, it's to keep your fingers from being ripped off on the way down if you get near the sidewalls.

Nobody knows everything.

Sue