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Kakashi sighed. He didn't know what to make of his charges' attempt at tree climbing. He was, however, really happy when Naruto and Hinata decided to stay and help their comrades for a while before Kurenai took them to teach the girl water walking, and trying to find something for the boy as well.

From what Rin had told him and what Naruto himself reported, it seemed that Tsunade had worked on his control like a possessed woman. It was good in a way, but Kakashi couldn't understand why the sannin had been so obsessed on him learning that so soon and so well. Must be a medic kunoichi thing.

Despite that, however, the young Senju worried him. The way he acted always so relaxed made him think that maybe he didn't realize how dangerous this mission was. It was strange; he could tell that Naruto wasn't arrogant, and the young genin had never said anything about being different or stronger then the others (unlike one of his students… he'll have to beat that attitude out of Sasuke one of these days), but the way he walked, spoke, seated, hell, even the way he simply breathed screamed to the whole word that he didn't felt threatened in the slightest.

The curious thing was that despite that Kakashi often caught that eyesore of an orange mass behaving in the most childish way he had ever seen. And then there was his fixation with sponges. He overheard him mumbling during lunch about how much of a big one he'd need to absorb the whole ocean, or how many little ones. It was starting to creep him out.

http://www.fanfiction.net/s/4307275/12/