The vapor cigs don't bother me in general. But I did have a guy who had one that had a ton of steam, and was standing upwind from me and a few other people. When he would exhale, the steam would literally engulf us. I asked him to move down wind, and he said it's only vapor and some kind of fruit flavor and I said, that is fine, but the vapor is exaggerating your halitosis and it smells like you've been eating cat shiat dipped in passion fruit. The guy got super embarrassed and moved down wind.