How Many Languages Does Your Pet Know?

Did you know German is often used to teach police and service dogs to be “ein guter Hund” (a good dog)? While North's knowledge of that language stops with "nein," I've been known to coo words at him in different dialects from time to time (gotta put those years of study to use somewhere).
Whether it's a bilingual household or just a couple phrases here and there, excluding that unspoken animal language (and the language of love), how many total tongues do your pets hear at home?

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