By now, it was well known what Sarah did to her kids. Now that Sarah’s dead, however, Oliver still has scratches on his arms. What people don’t know is that they’re from his little sister, Stella.

When Stella was young, Sarah would hold her head underwater as punishment. Now that Stella’s older, it still affects her so badly that she can’t wash her own hair. Oliver’s the one that does it for her. However, she fights it hard and scratches her brother.

But you, one of Oliver’s costars, didn’t know that. So, you confronted him about it, worried for his safety. “They’re from my sister,” Oliver told you when you asked.