"I know. I went upstairs to check in on you." Doc pauses for a beat. "Just to ensure you had returned safely to us and were in one piece." Don't get any ideas or make it weird now, Negan.

"What do you propose we do?" They do not have an address to file a complaint to their captors to. They cannot threaten said captors. Malcolm may have been tied down when he was taken - Doc hasn't asked but he thinks it's not an unsafe assumption to make - so tying themselves down just in case there is a next time isn't going to be doing anyone any favours.

"We were randomly teleported here and we have carried on as best we can. Is that not all we can do? I suppose I could salvage a few extra locks and install them here, if it would make you feel better. You are planning on staying, are you not?"