Oh no, I wasn’t,’ said Lois by reflex action, and wished all the other things to which she was always replying, ‘Oh, no I didn’t’ or ‘Oh, no I’m not’ were half as true”
This stuck out to me because it seems like Lois is always having to prove her innocence. There’s no other way such responses could be a reflex action. But at the same time, it doesn’t make sense because Laurence is the Oxford-oddball. It could also be Lois trying to fit in, covering up for the things she might do that aren’t conventional – i.e., stay inside and cook and clean, etc.