there's shit other than nicotine in an e-cig. lead and arsenic can be found in e-cig fluids and fumes. formaldehyde can form in the fumes after contact with the coils. flavorings and humectants can have weird shit in them. no one's saying e-cigs are as dangerous as cigarettes, but they're probably still dangerous, and we're not going to know how bad for a long time because e-cig popularity is a recent phenomenon.