Yup. My great grandma always had funds hidden somewhere. Cash, of course, because she couldn't legally open a bank account (plus a lot of this happened during the Depression). She couldn't just leave because a) marital rape is a thing and she had a whole bunch of kids and b) you just didn't really do that back then. But her stash made sure the kids ate and had clothes even when grandpa was being more of a pos than usual. It was just sensible.

Plus, it's still good advice for women in abusive relationships, so that when they're ready to leave, they at least have something.