I don't vape in places where smoking is not allowed with the exception of bars if they openly allow vaping. Even then if I am sitting next to someone, I ask them if they mind. I feel its the courteous way to approach it. If I am trapped in a movie theater I will stealth vape if there are not people around me. There are still some unanswered issues regarding the possibility of certain pathogens (cold and flu virus, infectious bacteria, strep throat, etc) hanging on particles of exhaled vapor. It is known that these pathogens suspend on water particles when you sneeze. For this reason alone I don't think vaping should be allowed in restaurants. Call me a germaphobe, but the thought of someone's exhaled vapor plume settling on my food as the waitress carries it across the room is kind of gross .....;-)~
Until we know a little more, I like to act with some restraint and courtesy.
Until we know a little more, I like to act with some restraint and courtesy.