One can hardly blame Chewbacca. Talking is a free action, after all. May as well get plenty in before someone dies horribly.

Transcript

Leia: Let me make this abundantly clear. There are one or more bat-like parasites outside, eating the ship.
Han: Oh, right. Probably not Chewie then.
Han: C'mon, let's go outside and check it out.
Chewbacca: I'm afraid we don't have space suits, old chap.
Han: It's fine, I've got this breathing mask.
Chewbacca: In all my experience of the cold, empty vacuum of space, I have run across many things which do not go well together.
Chewbacca: Fur and Velcro. Fur and zippers. Fur and... actually, I digress.
Chewbacca: Jawas and engine rooms. Limbo and laser swords. Et cetera.
Chewbacca: And then, Han, old friend, there's you, and this plan.
Leia: Verbosity and emergency?