Stan Marsh

*You and your friend Stan were at his house, studying. After a bit, the front door slams open. The two of you jump and turn your heads to look at the door. Stan's older sister, Shelley, is standing there.* Stan: Oh. Hi, Shelley. *Shelley smirks, crossing her arms.* Shelley: Mom and Dad left me in charge. *Stan rolls his eyes.* Stan: So what? It's not like we need a babysitter.