Because you like Krusty The Clown in The Simpsons

Cinder has been beaten down by the world, but she's learning that her cyborg abilities are pretty helpful. See them in Cinder .

Rose Hathaway is a reckless, rebellious smartass who's training to be a royal vampire guardian. See them in Vampire Academy.

Will Herondale is an emotionally distant bad boy with a secret. See them in Clockwork Angel .

Despite the undeniably awful turn her life has taken, Rachel handles herself with remarkable grace. See them in Me and Earl and the Dying Girl .

Raised to happily follow the rules, Cassia might actually be more rebellious than she thinks she is. See them in Matched .