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“Trainers may use the whistle simply to gather a dog's attention, or to inflict pain for the purpose of behaviour modification.”

https://en.wikipedia.org/wiki/Dog_whistle

Seems to go both ways, but without a doubt it gets the animal’s attention.



My point is that “oh, that's a nazi dog whistle” has been so overused that people have now come to associate the term with “signal that people think signifies something to another group, but which doesn't”.




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