1. A method, comprising: arranging for a first user to monitor a remote location; transmitting to the first user, while the user is supposed to be monitoring the remote location, a test image of the remote location, the test image being an image of a fabricated breach of security of the remote location, without informing the first user that the breach of security is fabricated; determining whether the first user recognizes the breach of security in the test image; and determining an attentiveness of the first user based on whether the first user recognizes the breach of security in the test image.