It'd be a little more understandable if he knew there was such technology that she never had to properly clean before. Dirt and grime were a fact of life for him, so he's learned how to deal with it thoroughly, even aside from having an aversion to it that could be hard to suppress. Still, even with those sorts of things available, Levi would probably be thoroughly checking for it anyway.

He examines the wound - healing is hardly his specialty, but he's seen enough injuries to know when something looks infected. Nodding in agreement at her assessment, he starts to roll up his sleeves. A long, thin pink scar scores up the inside of his right arm, indicating a similarly fresh injury. He hovers a palm about an inch over the wound near her knee, and a blue light begins to glow.

"Yeah, it looks clean. Not sure how much more I'll be able to do, but it might get you moving around faster anyway." His jaw tightens slightly as a burning sensation mirrors a ghost of Ari's injury on his own leg, but he doesn't say anything about it.

His gaze flickers back to her.

"Being a captain doesn't have anything to do with it - I teach all of my soldiers how to clean properly and we do it together. They all know my standards. It's better for everyone to not be living in filth." But he thinks a moment, trying to come up with something that she might agree to.

"You mentioned coffee. What's your experience brewing it?"