"Given the whole 'wake up naked in a strange room' thing, you're probably right. At least on the part about snatching people from their home worlds." He wrinkles up his nose. "You know, you'd think a group or race or whatever with tech to drag people from their worlds would have tech to fix whatever their issue is, right? Like, what would they need external sources for if they're that advanced? Are they just bored?"

He could start asking lots of direct questions - is McCoy sure he wants to go that route?

"Uh, he's from home." That's still weird. "That doesn't mean he isn't here - though, I'm maybe kinda hoping he's not." He doesn't really want his friends to be here, but he also kinda does so he's not entirely alone. "Right, right - and you can't even assume that you and your friend Jim are from the same timeline. Given the multiverse and all. But, yeah, anything you might tell him about what could happen between his time and yours could really mess things up. And not just for you."