The entire package Kain presents is exactly why Aren picked him; he was likely to have something valuable on his person, and nobles both deserve to lose what they can, and they can afford it. It won't mean anything to him, most likely, but it could mean a meal or few to her. And in the world she's been raised, looking out for number one is the best means of survival.

She scowls, trying to squirm away as he doesn't prove to be as easy a target as she thought. "Let go, or I'll bite you! I will!"