With regards to pax oxy... getting a little bit off topic here, but oh well.
It was mentioned earlier that there's a need for explanation as to how much to pull on the oxygen mask/lanyard/tubing (whatever you want to call it).
I recall during my intial training years ago, my particular airline was quite specific about it being one (and ONLY one) firm pull... it was described to me as being 'about the same as one of those pull-chain lightbulbs'. Of course, not many people probably remember those now!!
Unfortunately, a lot of cabin crew out there dont know (or care) WHY the oxygen demo is (mostly) taught this way- not two yanks on the mask, ONE firm pull. So they continue to either 'pull-pull-yank' or just hold the tubing up and place the mask over their face, which further confuses the issue.
Perhaps a little reminder on the oxygen system is needed for the FAs of today?? Just a thought...