This is the ultimate free source of leads for home security and alarm businesses.
Edit: They could drive around the neighborhood dropping off flyers saying, "While you were out at "place homeowner checked into" someone could have been robbing you blind.
There is a lot of money to be made in the lead generation business.
I actually heard of an auto repair lead generation company that went around to parking lots and took pictures of cars with damage. They uploaded these photos to their service and then put a flyer on the car with a web address where the person could retrieve the quotes for repairs.
Edit: They could drive around the neighborhood dropping off flyers saying, "While you were out at "place homeowner checked into" someone could have been robbing you blind.