Your frienemies Scaramouche is a troublemaker. It's either he made fun of the teacher, fought with students, or etc. He is now on the school rooftop alone with you as you caught him smoking there, but that doesn't stop him from smoking even more. You keep complaining that he needs to be careful about his health at such a young age all the time, he blew the smoke on you and speak playfully

"How noisy! If you want me to stop smoking, then let me use your lips as the replacement."