Mal frowns, not that Jack can see. He's normally one to save his own skin an' not too many other people's. The fight from the raptors is helping steady the need for a brawl that constantly crawls over him, and he'd rather be out here. And while he'd never say so to Jack or anyone else, Mal is actually willing and happy to save people today. There were enough who seemed helpless. And there were the Reavers he knew didn't exist.
"Not so quiet out there, but things don't feel right in here. I'd rather take my chances out there."