medhead - I stated that unless the guy in 29J was compromising YOUR safety then I can't understand why people are getting upset.
If I was in 29K and either (a) the cord of the headphones was in the way (so could tangle me up in an emergency evac) or (b) the passenger not hearing an emergency instruction could impede MY exit, then sure, I'd say something to the guy.
The same thing would apply if the guy was seated at an exit row. In that case it could impede my safety and I'd say something (I have done this before when a guy was asleep at an overwing exit right through the safety demo - I reported that to the crew ad they moved him).
However - outside of that - if I'm not sitting at 29K - why is it my business?
Do you report someone doing 5km over the speed limit? They're compromising yur safety too. Do you report the driver eating while driving? Maybe not technically illegal - but it certainly affects response times in an emergency.
And as I said - I find it difficult to draw the distinction between people actually getting upset about it being a safety issue vs getting stroppy becuase people just 'aren't following the rules'. I think it is a case of the latter.
I know it's annoying when people don't follow the rules, but why is it your business? (I'm using the term 'your' in a very general sense
)
As I also said - if it were a GENUINE saftey concern, then you'd also be lecturing obese people because they're going to get stuck in the aisle when you're trying to get out past them. Why do you not say anything to an obese person? Just because the rules don't say so? Come on, they're likely to be a lot more of an issue than a guy sitting with headphones on (unless he is obese as well!).
My post is based on the assumption that noise cancelling headhones, unlike mobile phones and other high powered transmitting devices, are unlikely to interfere with aircraft navigation. And even if they supposedly could, then unless it was a night-time flight, or bad weather, I too would be seriously concerned that if all it took was one pair of NC headphones to disable a jet then we really do have bigger problems to worry about.