I do. [Said very firmly, she goes off to find the first aid kit!

She returns with it a short time later and makes a shooing gesture at him] Sit somewhere! Will take care of it. [She smiles a little] What little sister cannot take of their brother? Besides, what if it gets-- [She pauses, thinking the word through to make sure it's the one she wants before continuing] infected?

What if it got so bad, had to cut off your finger? Then you would think, 'ahh I should have let Oona take care of me like she wanted!'