Somebody just rang my doorbell....

[tonypaladino]

Someone just rang the bell for the top floor of my house. When I went to the window and put my head out an SUV double-parked outside sped away, and there was no one else there. I went downstairs to see if anything had been left on the stoop or in the mail slot, and I saw a similar looking SUV park just around corner downt the block and it's idleing with its lights off.

1. Am I about to get killed?
2. Should I aproach the car?