Carrot, also known as "Underswap Papyrus", is known for smoking, right? Where did you think he got that? In my AU's case, he got it from his big brother, Blue. Surprising? And now Blue is trying his best to stop him from doing so.
Blue used to be a heavy smoker before he quit after experiencing some rather scary symptoms and has now tried to warn people of the hazards of smoking. Thus explaining why he doesn't like people smoking and encourages them to stop. He is TRULY genuine when he tries to reason for anyone to stop smoking because he himself has experienced it, from "why he smoked in the first place " to withdrawal.
