Well, I just got a new dimple on my back bumper. Backing up into my parking spot at work, I stupidly relied on my back up sensor. The damn thing never went of and I ended up running into the car behind me. Now I have a perfect imprint of the license plate screw in my bumper.

Got out of the car without shutting it off to inspect the damage. Pulled the car forward and reversed again, more carefully this time. Sure enough, the sensor is not making any noise. Turned the car off and on, tried it again and now the sensor works. I am just really pi$$ed at my self for letting a gadget replace my common sence and driving skills.