Here's a news item from The Associated Press: BOISE, Idaho (AP) — Police say a 74-year-old Boise woman arrested after pouring mayonnaise in the Ada County library's book drop box is a person of interest in a yearlong spree of condiment-related crimes of the same sort. Joy L. Cassidy was arrested Sunday at the library, moments after police say she pulled through the outside drive-through and dumped an open jar of mayonnaise in the box designated for reading materials. Cassidy has been released from the county jail and faces a misdemeanor charge of malicious injury to property. A motive was not disclosed by police. Boise police say Cassidy is under investigation for at least 10 similar cases of vandalism since May 2009. Library employees have reported finding books in the drop box covered in corn syrup and ketchup.