Doc is unsure of what to do with that kind of revelation. Usually there would be a glass that needs topping up. A smoke that can be lit. Something to busy his hands with so he doesn't have to fumble trying to fill a suitable response with words.

"I have told you more than I have anyone else," he says quietly, like he can use previous confessions as a bargaining chip to get out of this. "And I have described my time in the strange house in detail. I- am not sure what else you want me to say."