Convinced non-smoker, only people I mind smoking: people I'm in a small room with and my girlfriends. My parents are strict non-smokers, everyone who smokes has to go outside.
When I was on a 1day trip with an electrician (we have to spend 1 "job orientation day" at a company at the age of 14, beacause then our scholl system offers the choice whether to continue with another 4 years high school, change school or start an apprenticeship), I went to a customer who obviously was a chain smoker and never opened any window! I was glad we had to fix the doorbell, so I could go outside and try it.