I think I could do it. The only time I have been in the exit row I memorized the safety and evacuation card -- I have never read that card so many times before.
I think I calm when in an emergency also. When I went to Phoenix to watch the Fiesta Bowl with my Dad, it was only my 11 year old step-brother and myself in our hotel room. We were watching another game and then the fire alarm rang, I picked up my step-brother and ran out. He wanted to take the elevator and I said, "You never take the elevator during a fire." I practically carried him down three floors and dropped him off. Then I went back to the second floor to get a girl that was crying. There was no fire, luckily. But I remained calm during it all.
When we got back to our room, I made him read the Constitution. ^ My parents thought that was very weird.