Back in the van, Margo reveals part ten of her plan: Quentin gets to pick his own victim.
He doesn't have any ideas, so Margo suggests Chuck Parson.
Quentin says that he "wasn't pissed" (1.7.19) about the way Chuck treated him anymore, but that doesn't stop him from agreeing to torment him.
The plan is to go into Chuck's house, Vaseline all the doorknobs so no one can chase them, and paint his house. This sounds like it's punishing his parents more than Chuck, but whatever.
They go into the wrong window at first, so Quentin calls Ben and asks him for Chuck's address, which Ben gives him.
At the correct house, they go in armed with a can of Veet hair removal cream.
Chuck is asleep, and Quentin Veets off one of his eyebrows.
He wakes up, and screams out "MAMA! DAD! ROBBERY ROBBERY!" (1.7.60), so Quentin and Margo make a break for it.
Quentin wants to know why Margo did that, saying "you were always kind of friends with him" (7.66)—but Margo says she "was always kind of friends with a lot of people" (1.7.67). Remind us to never be kind of friends with her. We like our eyebrows.
Now it's time for the final step in her plan: break into SeaWorld.