[link|http://www.cnn.com/2002/US/07/26/missouri.girl/index.html|[link|http://www.cnn.com/2002/US/07/26/missouri.girl/index.html|http://www.cnn.com/...l/index.html]]
Apparently this girl's father left her alone with a stranger in the room that was a transient. The father went to the bathroom and came out and both were missing. It wasn't the father's house, he was visiting, but the man who was sleeping on the couch was a homeless man with a criminal background. Not sure if the father knew that.
But the problem is, parents have to go to the bathroom or do something alone by themselves sometimes. Can't always watch the kid every minute of the day. have to take a shower, or go to the toliet, or get dressed, or make breakfast, etc. Just hope the kid isn't alone with a stranger or the kid walks out of the house and into the street where a stranger can kidnap him/her.