Ran across this gem on a car forum.
So last night about 3:30am, my wife wakes me up, "is that your car alarm going off?". It was. My BMW was parked in the driveway, so I look out the window and see nothing out of the ordinary. I disabled the alarm, and the doors unlocked. Then I see some dude with no shirt on get into my car! I'm thinking "WTF?". I immedately lock the doors, then double lock/arm. Owned. I tell the wife to call 911, while I go outside and snap a quick cell phone pic of the guy just incase. After the first picture, he started getting pissed off and gave me the finger. I then went into the garage and grabbed my 3lb sledge. I stand next to the driver's door with the sledge in my hand and a very angry look on my face. If he tries to bust his way out of the car, he's getting squashed. The kid is obviously scared sh*tless, as he doesn't even move or look at me. Cops come and ask how I locked him in the car, and I tell them about the double lock.
Turns out the kid is drunk and he told the cops he thought my house was his friend's house. Sounds like a bs story, but whatever. He also threw up on the outside of my passenger door.
But yeah, double lock saves the day.
Obligatory picture of owned moron in his cage: