Ok, so... I can accept that it has some value as a mental exercise... and I can accept that in the spirit of brainstorming, maybe it's better to throw out ideas first and critique them as a seperate step later. And some of the ideas you've put forth certainly do have value...<br><br>but are you really thinking about taking a snorkel, flotation jacket, and mask onboard in case the plane goes down in the water?<br><br>This mental image comes up of someone approaching an airport security gate so equipped, walking in fins.... :-)<br><br>(Wondering now whether I checked or carried mine the last time I came back from Key West. I'm PRETTY sure I checked it. Anyway, the flight wasn't over water, so I certainly didn't have that use in mind. )