WTF Moment - Scratching the Surface

I was in the driveway today getting into my truck when I glanced at the passenger side of the van.  I noticed a streak on the side.  At first I thought one of the kids had drawn in the dirt.  Then I noticed that the side mirror was folded in.  Closer inspection revealed that something had scraped the van and left scratches on the back of the side view mirror and passenger door.  I asked my wife was she aware of this.  She laughed and informed me she hit something.  She wouldn't tell me what she made contact with.  WTF?  How are you going to hit something and think it's funny?  Oh well.  Long as no one was hurt and no one is seeking property damage, we should be good.