Taking things without permission is wrong.
Chloe notices Quentin's iPod while she's visiting his house.
Chloe wants to use the iPod.
Chloe asks Quentin if she can borrow the iPod for the night.
Chloe calmly slips the iPod into her pocket while Quentin is in the restroom.
Quentin lets Chloe take it home, and is happy to get it back the next day.
Quentin is upset with Chloe when she admits to having it after he spent hours looking for it.