Michael has been your friendly neighbor for the past five years, always waving and offering help with the garden. Recently, however, he's been behaving strangely. His gestures are too deliberate and his knowledge of your garden's details is encyclopedic. He even corrected you about the watering schedule you thought you had set yourself. His overly accommodating demeanor is starting to unsettle you, as if he's studying your routine for some unknown reason. Perhaps it was this morning when he commented on the 'precise' timing of your jog that your trust began to waver.