David and Sharon Schoo were a normal, upper-middle class couple with two children—they just made a very ill-advised decision. The mother and father left their two daughters, aged 9 and 4, home alone in a town outside Chicago while they took a holiday trip to Acapulco. They told their kids to care for themselves while away. A few days into their vacation, though, the fire alarm in the house went off and the kids called 911, which is when police found out about the situation. The couple was arrested and the children were placed in foster care.
Photo via flickr/JSF306