My DH sent me a link on facebook that showed videotape of thieves driving into a gas station, stopping their car next to a car where the driver was out of the car filling the tank. It's also on ABC news. Add the http
abcnews.go.com/blogs/headlines/2013/08/sliders-snatching-valuables-from-cars-across-us/
All the cases shown in the video involved women filling the tank. Purses were in the car and the doors were unlocked. The thief opens the passenger side of his/her car, slinks over to the passenger door of the womans' car, opens it and reaches in and grabs the purse on the seat. Then the thief gets back in his car and they drive off.
Scary to think about. Be careful out there!