I was useful!

The appears to be a flaw in the ignition design of the Prius.  You can start the car, and drive off without the "key".  Everything is fine until you stop, and try to start it again.  No dice.  That happened to my friends Brian and Janice.  I had to go into their house and retrieve Janice's purse and take it to them. I thought the purse really brought out my eyes!