Mitch: Doesn't the dog ever get the bone?
Wayne: Yeah, I hear it happens once in a while, it's a disaster. They can never get that dog to run again.
Mitch asking Wayne if the dog doesn't ever get the bone? Mitch replies that it happens once in a while but that they can never get that dog to run again. Wayne referring to Mitch being the dog as he knows he has to bring down the firm to get his life back.