Someone put baked beans in my mailbox, but it may not just be a harmless prank

Article Title: Someone put baked beans in my mailbox, but it may not just be a harmless prank Snippet of Article: "found a mound of baked beans in her mailbox may have uncovered a sinister new trend...The beans were used as a messy indicator of which house was unoccupied, and a possible easy target for a burglary. ..." Reference: nypost.com