When He Rings.

A married couple were going out for the evening and called in a teenage babysitter to take care of their three children. When she arrived they told her they probably wouldn't be back until late, and that the kids were already asleep so she needn't disturb them. The babysitter starts doing her homework while awaiting a call from her boyfriend. After awhile the phone rings. She answers it, but hears no one on the other end — just silence, then whoever it is hangs up. After a few more minutes the phone rings again. She answers, and this time there's a man on the line who says, in a chilling voice, "Have you checked the children?" Click.