A friend of mine had to see a neurologist.....I report the gist of the consultation Consultant: you mustn't be around smokers Patient: I don't allow smoking in my house Consultant: Just being around smokers would be dangerous for you Patient: Well, as I said no one smokes in my house, or work, or car Consultant: SMOKERS ARE BAD FOR YOU WHETHER THEY'RE SMOKING or NOT !!! I kid you not...this is the sort of mediaeval superstition we are all up against .