Teen Wolf, Season 5

Stiles:
Wait, what happened?

Scott:
When the other chimera, Lucas... When he came after us, I heard Kira say something in Japanese.

Stiles:
That doesn't sound too bad...

Scott:
She doesn't know any Japanese!

Stiles:
Still not terrible.

Scott:
I also think I might have stopped her from killing Lucas.

Stiles:
[alarmed] Okay... Wasn't he just trying to kill you, though? I mean, that just sounds like self-defense.

Scott:
It was more than that. I mean, she nearly took off his head.

Stiles:
[anxiously] Maybe she had no choice? There's gotta be a point where self-defense is justified. Tracy killed her own father, and Lucas would have killed you.

Scott:
They're not the bad guys. They're the victims. We shouldn't be killing the people we're trying to save.