One time in college my roomate Amy and I went to Wal-Mart. We were listening to DC Talk on the way ("I wanna be in the light, as you are in the light..."). We bought a whole bunch of stuff, including groceries and toiletry items for our dorm room.
When we were ready to leave, we got to the parking lot and Amy unlocked her car. We loaded all the bags into the back and climbed in. She cranked the car up and put it in gear, then stopped, looking incredibly puzzled.
The radio was playing some alternative rock music. NOT DC Talk. She said, "Where's my song?" After a few more seconds we realized that we were not in her car. It seems that her key UNLOCKED AND CRANKED someone else's car!
We flew like the wind to get out, unload the groceries, and lock the car back before the owner came...then we got OUT OF THERE!!!