My dad used to smoke a lot back in the 90s but it always bugged my mom. One day she told him she was going to leave him if he didn't stop smoking. So he told her to go on, because he didn't want to be with anyone who would give him ultimatums like that. She packed up her things and took me to stay at a hotel in a nearby town. She sat by the phone and, sure enough, after about one day he called to apologize and beg for her to come back. She said she would, but only if he stopped smoking. He never touched another cigarette in his life.