Never mind a car, we get graffiti on the side and front of the dojo every other week or so. We ended up repainting the building so that now we only have to paint over it but it's really annoying.
I have dreamed of running an all night nightclass with the lights out, and the student that catches the vandal getting a kyu promotion.....

. OSU, no this would not be right, but I am allowed to dream about it in frustration....