Then I expect we'd explicitly handle that case, but I don't think we'd ever want a key called bad_credentials. Even if we did, I'd never want to rely on `"substr" in str` as the way we act on that key. That leads to unpredictable behaviors.

As an example, the order of logic here is very important, where the "cu_credentials" elif MUST take place before the "credentials" elif, because "credentials" is in "cu_credentials". That sort of behavior is nonobvious, and thus dangerous.