Oh horrors, yes. Or if you were traveling with someone who was just a friend but not a romantic partner. I'd honestly have to reject the room and stay elsewhere.

Long ago I had a live-in boyfriend who felt alienated by my complete refusal to agree to a bathroom open door policy. He felt that we should be at "the pooping in front of each other stage," and that we should keep absolutely nothing secret from each other. This is an intimacy stage to which I do not and will not EVER go with anyone, and he was no exception. I don't see it as a "secret," its just common civility and dignity.