Several of my friends use Ecigs (even though many of them never smoked cigarettes). Its become quite popular at my skewl. They have tried to get me to do it but I keep saying no (which they get mad at me for because they say its harmless). I just wouldnt feel comfortable doing something like that and not knowing exactly what im putting in my body. Not to mention It is my understanding that some of them have nicotine in them which is addicting.