I can imagine it. If you look at model home floor plans these days, most have floor plans that put the children's bedrooms on one end seperated from the "master bedroom suite" on the other end, with all the main living area in between the two. And frequently with a back door accessing much closer to the children, than to the parents.
Also, home invasion burglaries are completely common. Why is so hard to believe someone can take a child as easily as they take the electronics?