This is because - unlike, I suspect, the vast majority of you - our tiny house on 0.6 acres of a Canadian island is not connected to a sewer. That's right: we are not on a sewer system. No, no; instead, we have what's known as a septic (or engineered) field which deals with (processes and disposes of) our household waste using tried and trusted methods as old as the tradition of composting in the garden. Our toilets work as normal (we have running water, courtesy of a well and pump); they flush our pee and poo away out of sight, but from there it all goes underground into the system laid out on our property many years ago, there to decompose and seep into the soil by natural means.
Until I relocated my life to Canada, I'd never heard of this arrangement and when I first became aware of it my first reaction was one of doubtful distaste, however through numerous acquaintances I have become convinced of the efficacy of small scale systems such as these. Over the years I have even become convinced that the systems I describe are far better for our rural environment than the large sewer treatment works that we see elsewhere(not that they don't serve their purpose very effectively).
The pay-off is minor; I silently grumble about having to think about how much (easily compostable) loo paper I can use, about how little mouthwash I can put down the sink and how I need to think about my soap and toothpaste usage in terms of not harming the useful bacteria which lurk (albeit helpfully) in our underground disposal network.
But you know, I can live with that, and within twelve months I will probably stop giving it much thought - after all, I know that I'm not relying on a vast network of pipes to take my poo away to treatment works or even worse - as in the case of a couple of communities not quite far enough away from our island - to be flushed, untreated, directly into the ocean...
By comparison, I keep my poo close to my chest. Ew.