[As unnecessary as helping him clean the wound is. Saying thank you is still the polite thing to do.
You know, somehow he never expects this question. He gets it surprisingly seldom, all things considered. On that note, he'll need to fetch a new glove.]
If it can be avoided, I generally prefer not to answer this question as I would rather the answer not be spread. But, miss Yuuki, I have learned that you are a good and trustworthy person.
[She's actually a cat; he hasn't forgotten. Strange - he remembers being rather wary of her before, for whatever reason. Obviously he was mistaken, for once in his life. If miss Yuuki wants to know, of course he'll tell her:]