I like the classic "We traced the call... it's coming from your house! Get out of there!"
Man, what a spooky scenario. Imagine: Young teenaged boy with golden locks of hair jams out in his room to Megadeth when all of a sudden a big, tall, crusty looking fellow bursts in the door and guts the teenager, hangs him by his intestines, slops all of his organs between the seats of the couch, tosses the bones under the bed, then goes trick-or-teating with the skinbag!