Children's Book ID

[kjckjc]

I was reading the blog of a woman I went to school with and she posed this question and I was curious if you fine folks had any ideas:

@Person I Graduated With

It was a picture book, out in the '70s. It was about a little girl who walked to school each day. She passed by a house with a tall wooden fence. On the fence was a sign that said: Beware of Dog. (There was an illustration of this). She always pictured this giant, scary dog living there. I think the dog may have barked, too. A loud, big dog bark. But then one day, as she walked by, somehow the dog was out. The little girl closed her eyes in fear, but then felt something on her hand. The dog licked her hand. (There was an illustration of this, too). She opened her eyes and it was a very small dog. I think the owner may have come over and given an explanation for the sign, but that part’s fuzzy. And that’s all I remember.