Our older dog is a really good boy. But for some reason whenever we sing "Happy Birthday" he starts to bark and bark and get really nervous. We can sing any other song but just that song he barks. Sometimes when we're calling friends for their birthdays and we sing, they think it's cute when he barks. But I'm not really sure why he does that. I know it may sound totally crazy, but it happens EVERY SINGLE TIME... What do you think???
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