Most unfartunate but it happens. I suppose it's one of those taboos; regarded as impolite for 'ladies' who have to hide away to let go. But it's natural. Just a shame that god didn't make it smell like roses.
Even the Queen and the Pope do it.
Someone made a film ages ago - may have been Dali, but if you know of it please leave a link. Around (ostensibly) a dining table is a group of people except they're sitting on commodes talking away or reading a mag. Then comes dinner time. People grab their trays with plates and cutlery then dash off to a row of cubicles, each entering one and bolting the door to eat their food. (If not Dali it fitted with the Dada artists' agenda.)
And what of the BFG (for fans of Roald Dahl.) Whizzpopping! It's a sign of happiness, so says the BFG. Frobscottle helps!
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