What trouble does Owen get into in Every Day?

Owen is Leslie Wong's brother. A lives in Leslie's body in chapter 2, Day 5995. A feels that no one expects Leslie to be talkative during family breakfast.
On the way to school, Owen smokes a joint. Later in the school day, Owen gets into a fight with another boy about drugs. Owen claims this other boy is his dealer, but the other boy says that Owen is really the dealer.
Owen gets in trouble for fighting and runs away. However, A as Leslie convinces Owen to come back and helps Owen fabricate a story for their parents. They say that Owen and the boy were fighting about a girl, so his parents won't learn about the drugs.
Owen still is not nice to Leslie, despite her help when he is in trouble. So A says to Owen:

"Look . . . you lying little pothead . . . .You are going to be nice to me, okay? Not only because I am covering your butt, but because I am the one person in the world right now who is being decent to you. Is that understood?"

This changes Owen's attitude a bit.