We had a schipperke growing up. We were well past the toddler stage, though. Our biggest trouble was her guarding us from people who came to the door. She also took on a Rottweiller once out on a walk. Molly-Come-Back was a little yippy; she barked whenever anyone in the neighborhood was out of place.

I'll have to give this some more thought. If I could find another Molly I am fairly sure s/he would be fine with the kids, but maybe she was an exception to the breed?