True, and I mean to say that's different from him losing his composure or showing worry in a fight, grit his teeth or at least losing a drop of sweat. The scene with Perona is just comedy.What I mean was when he was annoyed with Perona. He kinda lost his temper there.
He did so in the anime version of Marineford (gritting his teeth against Jinbei) but never in the manga. He was really missrepresented in the anime.

