Probably best only to fly on aircraft that have single-seater toilets, then ...
Won't somebody PLEASE think of the children.
I can think of ten things when aboard an aircraft far more annoying than
someone vaping on a plane.
As for being "very upset" when people in the next seat do it I suggest you
take a look at the world we live in and maybe relax a bit.
Looks like answers from 1 non smoker and two smokers. The smokers being those who donīt give a toss as long as they get their fix.