A funny question....but legit.
I have found that most ladies who enjoy camping have to come to grip with this subject a long time ago. An EC’s toilet inside the living space is a thousand times better than a pit toilet, a pubic toilet, or a portable toilet in a tent. But if your traveling companion isn’t yet comfortable with bodily functions in a smallish space like an EC’s house, perhaps you should take an EC or expedition vehicle off your wish list.
Honestly, there is no way around doing your business inside an EC’s house especially when the weather sucks outside, but that being said, consideration goes a long way.
I have no problem with my wife doing her business any time. But she is more refined than I am (but not by much), so I do her a favor and if we’re on the move, I’ll use public toilets for my malodorous business. When we‘re camped, I tend to do my business when she’s asleep. Household bathroom sprays help.
As far as the smell from the cassette when not in use, we use a natural, non-harmful RV odor control in our flush water, and more importantly, empty the cassette every single day. We‘ve become pretty adept at finding dumps, pit toilets, and legal places where the cassette can be emptied, which is one of the cassette’s pluses. People think you’re rolling a small piece of luggage into the freeway rest stop toilet. And if we’re boondocking for a long while in a place where it’s legal and we’re a long way from a water source, we’ll dig a deep hole and dump the contents in there.
And like Howard said, a composting toilet is probably a better option if you can wrap your head around the fact that you’re composting your poo inside the toilet. My bride said “no way”, so we have the cassette.
As you can see, toilet use and science is a mind over matter thing. If you or your partner can’t envision doing your business in the combination bedroom/dining room/living room/kitchen of an expedition vehicle’s house, you should save yourself a lot of grief and go in another direction, or get a new partner.
One more thing, I’ve seen questions on the forum about the side to side sleeping arrangements in an EC and how, in the middle of the night, does someone climb over their partner to go to the head. Again, consideration goes a long way, do your business before you go to bed. In our case my wife sleeps all the way to the rear and if she has a late night nature call, she’s quite nible and can climb over me without waking me up. For that, I am grateful.