'Pre-marriage', ugh. Was this a test with An Agenda, or just bad survey writers?

Clearly it's to remind you not to forget your elephant. You wouldn't be able to take it in with you, after all, and you might be thinking so hard about what the result of the test might be (or planning your future wedding) that you might forget, and leave it outside the door still waiting for you. And that would be sad, and clutter up the corridor something chronic.