Fourth hand smoke is here.
If you are not a smoker, but spend time with a smoker, you have picked up the deadly third hand smoke and turned it into the even more deadly fourth hand smoke. It won't hurt you, you are merely the carrier of the Dreadful Thing. It will leap from you into the eyes of the nearest child and blind them instantly. Then it will reach into the nasal cavity of the child's parents and implant the urge to buy a grey box from behind a screen.
Last month, third hand smoke would have killed you for the crime of being with someone who smokes even if they are not actually smoking. The purpose of that was to scare you into not associating with smokers, so they would be isolated. It didn't work well enough, some nonsmokers persisted in being friends with smokers. So your terrible addiction to talking to addicts must be cured by peer pressure.
Now, by the powers infested in the Dreadful Arnott and her drones, third hand smoke will not kill you if you are friends with a smoker. It will still kill you if you aren't, but not if you are. If you are friends with a smoker you are not the victim, you are the Smoker's Evil Henchmen and will spread the smoky deadliness far and wide.
And so the smoker is further isolated because his non-smoking friends cannot associate with him or they face public censure and soon, quite possibly, the loss of their jobs.
Listen up, antismokers. You are failing cotinine tests already. Next time you fail one, watch all your friends disappear too. They can't associate with you any more - even though they've never seen you smoke, the test proves it. You're a secret smoker.
I'm afraid I can't help you. I'm a real smoker, you see, so nothing I could possibly say will have any value.
(Oh, it's late. Look up the Joker laugh on YouTube yourself this time. Nonsmokers are now entitled to one too. Antismokers are not).