To bathroom together or not to bathroom together, that is the question:?

So I was reading the tread (fyi not on the toilet)from the “fully love you” question earlier and someone mentioned “unabashedly farting” which gave me pause. Unabashadly huh? Then I remembered Woody Allen in Wild Man Blues, where in the hotels he and his daughter/wife and child stay in, he must always have his own bathroom. I remember thinking at the time that while it was truly in Woody’s neurotic nature, I also thought it was a good idea. I mean, why do couples have to share everything? Wouldnt that keep ones sex life alive a little longer if there was some mystery left? ie: “what does he do in there? what could possibly take so long? why does it smell so good when she comes out?” Ya know – the wonder of it all? Now I am all for self exposure (ahem – metaphorically) and being vulnerable with another human, but really do we have to share bathroom time?
Thoughts? Do you or Dont you with your partner? (not friends this is a SO relationship question)