Put my car in a car show yesterday... Was not as fun as I thought it would be

I enjoy shows and cruises, but there always seems to be some dumb s.o.b that does something stupid. I now leave my windows up. Have had idiots poke at my dash and headliner. They are both new but really?... WTF!!!! My father and I went to a local show and we decided to leave our cars to go look at others. We returned just in time to see some guy using my fathers 68 GTS as a park bench. Foot on front bumper and basically sitting on the grill. He got quite an ear full and came very close to getting knocked the hell out. The world is full of ignorant people... I wouldn't sweat it. Enjoy your car. At least you are driving yours.