Malia and Stiles in “Unfinished Business”

Malia

[about Melissa] Why would she lock the door?

Stiles

Maybe she didn't mean to.

Malia

You don't just accidentally lock a door.

Stiles

Okay, well, maybe she wasn't thinking, exactly? Or wasn't thinking it through? You know, people sometimes do things without thinking them through.

Malia

Then she's stupid.

Stiles

No, even smart people can do stupid things! You know, 'cause they think that it's the right thing. And, I don't think we should hold it against her, you know, for the rest of her life! Especially because she's tried apologizing hundreds of times through texts and voicemails...