The separated parents of a 3-year-old Maryland girl forgot something when they left a recent party at Chuck E. Cheese … their little girl. Both the mother and father of 3-year-old Harmony assumed the girl had left the large party with other relatives, ABC News reports. Neither one realized she was missing … until they saw her on the 11pm news. A restaurant manager had called authorities three hours earlier when staff found the girl alone, but deputies were unable to reach her parents. No charges are expected.