Stuff stolen from your car

The other day after a cruise I got into my car and noticed that the selector window on my B&M shifter was gone. Sometime jurning the show someone reached into,or got into the car and popped it off...you gotta be kidding me..if your going to risk getting caught steeling you think it would be for something worth while.
First time anyone has burned me at a show.
What have you had ripped off that made you shake your head?
AL