It came to the Doctor's attention that sleeping in the room next to Jack might not be a good idea, if Rose was right about him "getting along" with the people in the apartments. That, however, was not the reason he couldn’t sleep. The air of the place made his hair stand on end, and he'd never really gotten a night of decent sleep outside of his TARDIS in centuries.
Cracking his neck as he stepped down the stairs, he decided to have a better look at those books in the common room. Learning something about the world he was in had to be a way to figure out a way out of it.
A rather large man sat flopped on the couch, cleaning pieces of what the Doctor assumed was a mean-looking gun.
"Good evening," he said to the man, offering up a smile.
A grunt was his reply, "Ain't nothin' good in sittin', jus' waitin' ta die."
"Is that what you think we're doing?" the Doctor queried, sitting himself in a chair.
"Yeah, that's what I think we're doin'," the man snapped back, "Yer new here, bud, but lemme tell you, ain't nothin' happens 'less we got some approval, an' people is dyin', or is gonna die at the rate them vampires is gainin' ground. An' I ain't a fan of gettin' snacked on."
The Doctor's eyebrows rose, and he looked at the gun in the man's hand, "Callibourne autolock, is it? That would put you in the 26th century, by your accent a backwater man. Used to taking orders from a rather unsavory government, if I remember correctly."
The man's hands slowed on his work, "Yeah, you got a problem with it?"
"Nope," the Doctor's lips popped around the 'p', "Just trying to see where you're coming from."
The man slid to a sitting position, glaring at the Doctor, "Position I'm comin' from is bent over a chair while Harth ass-rapes this whole place. I heard what he done to people, I ain't about to see it happen to nobody else, least of all m'self. An' if that means not waitin', I ain't got a problem with ignorin' them if'n I got to."
The Doctor leaned back, crossing his arms, "What's your name?"
"Cobb. Jayne Cobb."
"Ah, yes, I've heard of you."
"That supposed ta insult me or somethin'?"
"Would you consider it an insult?
"No."
"Then, clearly, it wasn't."
Jayne looked confused for a moment, then he fixed a rather intimidating stare at the Doctor, "Who're you supposed ta be, then?"
"I am known as the Doctor," he gave him a bit of a broad smile.
"Doctor ain't a name."
The Doctor snorted, "And, the last time I heard, Jayne is a girl's name even in your century."
"Jayne ain't a girl!"
"Ever heard of a boy named Sue?"
Jayne got to his feet, pointing at the Doctor with a piece from his gun, "Listen good. You may be thinkin' you're all sophisticated an' educated an' that's gonna keep you alive. It ain't. Us with the guns, they keep you alive, an' I wouldn't be tryin' ta instigate nothin' from me, 'less you want me to jus' watch 'em Magogs 'r Harth take you."
"And if you did?" the Doctor asked, his voice neutral, "See ''em' take me?"
"Well," Jayne's lips twitched into a mean smirk, but his voice was deadly serious, "If I was nice, I'd shoot ya 'fore they got to workin' on ya."
With that, Jayne gathered his gun parts and headed towards the stairs, leaving a fairly befuddled looking Doctor in his wake.
Feel free to bother either.