It was such a contrast between the little white sticks of smoke spewing paper and a glass and metal e-cigarette. The one the woman had was quite long because it had an extended battery pack, the vial of liquid peach flavoured liquid was visible, the mouthpiece was a formed metal end it reminded me of some sort of musical instrument.
Standing next to someone with an e-cigarette is very different than a regular cigarette you may smell the vapour if you're close enough but it's gone within a second. Regular cigarettes are like some sort of Charles Dickens creation in old London it may as well be coal smoke and ash chimney it lingers so long and is so strong in comparison.
I think the reason e-cigarettes are banned in my province is due to the nicotine containing liquid which I guess is far more dangerous than caffeine even in common bulk powdered form since a liquid on skin is more easily absorbed. I've read about nicotine levels per vial of 6mg to 18mg and the lethal dose for humans is 1.0mg/kg body weight so maybe it's possible a person could accidentally poison themselves if a vial broke and the liquid fell on their skin.