Answered Jan 14, 2020
I suggest being homeless for awhile.
You will lose a lot of inhibitions.
Although I will admit that, I was generally able to have single-user individual toilets to do my business.
Also, try living in high-density, crowded slum housing, with communal, multi-stall toilets. In those places, all you have is basically a public toilet, with your neighbours. Who are also in the next stall, casually dropping a deuce.