Re: Jesus, NO!
...because it doesn't contain any actual smoke! Passive smoke is still smoke and contains lots of carcinogenic products of combustion. The vapour from a e-cig is almost all water vapour.
I get not liking the smell, but I don't get why people refuse to acknowledge that there is no evidence that vaping is dangerous at all, unlike actual smoking. It's always "we don't know", "we need more evidence" etc. but it just smacks of puritanism.
IMHO if everyone who smoked switched to vaping tomorrow, the world would be a hell of a lot better off.