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I DON'T have extensive first aid experience nor rescue training, so that's why I DO listen to the safety briefing. Who said anything about a safety announcement that gives you heroic insight into emergency response? No one. That's the point of repetitive drills: you have military experience, so you would know that. Guess what? Most of us don't, so the safety announcement, though limited, is the best thing we've got.
And I bet even those that do have emergency experience haven't spent endless hours trying to figure out the best way to evacuate 200 plus passengers of varying physical ability out of a smoke cabin with limited physical space through 6 narrow exits 30 feet above the ground.
Every time I visit an industrial facility or see what needs to be done in my lab, I PAY ATTENTION TO WHAT THE EXPERTS OR TRAINED RESPONDERS SAY. A few minutes of my time is worth it in case they do say something I've missed or if I haven't say, flown on a plane in a while, or if I'm in a new plane with different exit points or safety protocols. People don't even pay much attention to a bloody fire alarm when they're on the ground and have multiple exits - and they should; and they better pay more attention when you're in a metal canister attached to two large fuel tanks and ignition sources, moving faster than you can possibly run.
If you've been in military or rescue situations... great for you. But it's the attitude of "I can't possibly learn anymore... I want to do [whatever]... I know what to do all the time... blah blah blah" that is both selfish and annoying. Plus, I would figure that you, as somebody who might be able to respond far better than the average, would be pretty irritated - to say the least - at a fellow passenger who has no idea what to do because they were too self-absorbed in their e-book or mindless twitter feed, and are now impeding your ability to exit or help a fellow passenger in genuine distress.
You're right... you don't know me, and I don't know you. In fact, I don't know if anybody on the plane, other then the crew, has ANY TRAINING OR EXPERIENCE dealing with emergencies. So, for courtesy's sake and for common sense, I will listen to the 120 seconds of safety announcements, and I expect everybody else to do so as well.
p.s. No, I don't watch ER, or Blue Bloods, or whatever. I'm smart enough to know the difference between reality and fantasy.

But I have taken first aid and other emergency training - I know I would be no expert and so I recognize my limitations.