I can top that! Many many years ago, one of our sups was following a driver. The driver went into a store to make a delivery, and the sup saw he had left his keys in the ignition. To teach the driver a lesson, the sup hopped in the PC and drove it away. The driver came out, and called the police in a panic. Police found and pulled over the PC, and removed the sup at gunpoint. The police were P/O'd after all the explanations were made. Hopefully, the driver and sup both learned a lesson!