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The wife is hardly likely to say, "The dogs had a shit."

I know, but I'd spell it poo. Seems both may be valid.

That's because your brain thinks Poop so logically it should be Poo but the correct spelling is Pooh because the h is silent. (But violent) 🤣💩
P.S. Even emoji gets it wrong. LOL

I think I'll stick with my definition from the Oxford Dictionary.