A dog that has only been in your possession one day has not bonded with family members. Folks should warn children to use caution around a new animal until they get to know each other (no matter how counter-inuitive this may seem to a child).
It is likely that the child got down in the dog's face and hugged it or something along those lines (which can be perceived as a challenge by a dog). I too hope this animal would not be euthanized...closer supervision by the parent and setting some boundaries for the child would have prevented this.
By closer supervision, I don't mean was the parent in the room...I mean a warning to the child not to get right in the dog's face.
I would not say this is extremely unusual for that breed, but it probably would not have happened if it weren't for something I described.
I hope the family understands this, and gets some education on the subject before making a decision about the animal's disposition.
Now, if it were a pit bull...nighty night.
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