Middle way is of course, as always, the right way.
Of course there's no reason to ban these things, but equally, why should I be forced to breathe the stuff in just by virtue of being in a pub or restaurant or shopping mall where someone decides that because it's legal for them to vape there that they can and will. So, treat them like cigarettes and use them in the same places, and then everyone should be happy.
Except those that believe that their rights extend past the point where they infringe mine. Which they don't.
Biting the hand that feeds IT
