I've yet to see someone else vape. This doesn't really surprise me though because I live in a fairly small "Hick" town I guess you could say but I'm trying my darnedest to get the word out there so hopefully I'll be seeing them soon. 
I have not, but a co-worker of mine did, and he told me this guy was at a bar and was chain-smoking the crap out of his e-cig. He would take a bunch of drags, then light up a normal cig, smoke that, put it out, refill his e-cig, vape that tell empty, light up a normal cig, etc.
Apparently this guy must have been a 10 pack a day smoker. Cause, holy ****e.
I find it odd to hear of so many people wanting or trying to be discreet with their E-Cigs, I am the exact opposite, I didn't hide my tobacco cigarettes and I will be damned if I will hide the legal substitute. I am getting about sick of everyone crying about what others do with themselves. This is water vapor, if this bothers them, then they got bigger problems than my E-Cig being around them. I think I have only seen one other person that had one and that was at the tobacco store, I have introduced a few friends to them but I don't count those.
...
"Look at those douchebags"