[Cassel isn't quite looking at her, focusing on the wall he's applying another mark to.]

Sort of. If you're worked enough you can get headaches or even hallucinate. There's a test, too, but it's rare for people to take.

[He can't bring himself to tell her about the specifics, how to tell if someone has worked you sloppily, because that feels too much like a family secret to divulge, even though logically it doesn't matter. He doubts there are any workers here other than him.]

Some curses are pretty obvious. If someone touches you barehanded and your rib breaks for no reason, that doesn't leave room for doubt.