There is no point here in one side trying to convince the other. The one thing about this thread that is toxic is the mere topic.

I vape. I love it. People who never allow smoking in their homes and cars often ASK me to vape there, as the "choconilla haze" flavor I use most often is found by many to be very pleasant.

I vape in rental cars. I vape in non-smoking hotel rooms. I travel a lot, so if they put off a foul oder, you can bet I would be in bankruptcy from all the fines by now. Fortunately, most people find them to be anything but offensive.

There are three primary reasons that ecigs are prohibited on planes. First, it would be a nightmare for FAs. That is the primary reason. Between trying to determine if the vapor they see is vapor or smoke, they would never get a rest. For this reason alone, I support the ban.

Second, we live in a politically correct world. It has become hip to dislike smokers. Vaping looks like smoking, so many people hate vapers for simply looking like smokers. I don't like to be around smokers, either, but I'll die fighting for their right to do so (somewhere other than the plane on which I'm seated).

Third and final reason for the ban is that some people are actually stupid. I know that may come as a shock, but if some "stupid" smoker sees vapor a couple of rows ahead and thinks it is smoke, notices that the FA is in full view of it and allowing it, then guess what that person is likely to do? Light up their tobacco cigarette. Then you could have a mid-air fight, in which I might even participate under certain circumstances. (j/k)

I, of course, would never do so, but I know people who vape in the lavs, and there is never a sign of "smoke" coming from within. It dissipates too quickly. Unless they are intentionally blowing out the vent at the bottom of the door (see "stupid" above), then nobody will ever know they were vaping in there. If you see "smoke" coming from the lav on a 787, please, please, please report it post haste!

Finally, for anyone considering holding in the vapor so that nothing comes out, don't do that. The liquid is designed to be inhaled and exhaled promptly, just like a real tobacco product. Leaving the vapor in your lungs too long can cause bleeding.