One of the great disappointments of vaping for me was the fact that everywhere it was advertised as "Use it anywhere, it's completely legal, don't fall foul of the smoking ban", you were told you could use your e-cig anywhere, trains, planes, pubs, cafe's, restaurants, and for me that was a massive attraction of vaping over smoking. It was what made it 'worth it' for me to try and make the switch, and then you find out that, actually, none of that's actually true. You can't use your e-cig anywhere. Proper let-down that was.