Here's some criminal idiocy for you: A man was arrested in San Diego yesterday after returning to a Jack in the Box he'd allegedly tried to rob the day before. The man, 30-year-old Shawn Dustin Page, allegedly pulled a gun in the restaurant on Wednesday, but fled when the cashier said he couldn't find the key to open the register, KTLA-TV reports. Police were talking to the manager about the incident yesterday, when they noticed that the would-be robber was standing in line, waiting to get some lunch. They quickly arrested the hungry suspect, who also had outstanding warrants for bank robbery. (More San Diego stories.)