And what about that someone? Accustomed to it or not, they're still a person too, with their own limits and needs for space and support. What's going to happen to them, if they do come to overload themselves past breaking point?

[She shrugs.] Well, hypothetically. Some people have staggering mental fortitude, and some people do things even when there's nothing in for them, because they really don't need anything in return. I won't assume, I'll just settle on saying that in any case, playing mother hen over this whole manor is still a little too gracious of you.

[...]

Do you drink, Susan? Humans do it to unwind, sometimes.

[because surely Susan doesn't know what that is. she probably doesn't know what 'relaxing' and 'fun' mean, either!]