Because you like Calvin Palmer in Barbershop

After becoming accepted into the group of popular girls, Tracy Freeland has turned from a sweet and reserved teenager into a monster. See them in thirteen.

Maddy Perez seems like an angel until she opens her mouth. See them in Euphoria.

The only defense Earth has against alien invaders are giant robots in the hands of pilots like Kaworu. See them in Neon Genesis Evangelion.