[If she was the type to facepalm, this would be where Karkat could hear the smack of her palm on her forehead. But since she's not the type, there's only another long suffering sigh. Yep. That sounds like Vanitas.]
And I'm guessing knocking him out to get him to a nurse wasn't an option.
[Audio]
And I'm guessing knocking him out to get him to a nurse wasn't an option.