[Whoo. Success. He lifts his broken arm slightly in its sling, wincing just faintly as he does so.]

Sick. Well, if you want a lab rat, I'm also chomping at the bit to get back in there. Just fuckin' gnawing at that shit. The bit is fucked at this point, to be honest, we really gotta replace that thing.

[In all seriousness, Dave isn't actually entirely sure what the "bit" in that phrase refers to. Something involving horses, he thinks, which will surely go over well with horse girl here.]