One thing that I always find fascinating about graffiti on railroad property is how the railroads deal with it. I've heard stories of graffitists getting arrested or chased off and then the equipment moved to the paint shop for a patch job, but I've also heard stories of other graffitists who were simply advised not to cover the numbers. Inevitably, many freight cars these days will have their reporting marks covered by a graffitist's piece. Here's one of the more interesting solutions that I've seen recently; the number was repainted with spray paint in a way that makes me think it could have been done by the graffitist himself. On our model railroads, this gives us another way to renumber equipment without getting out the paint strippers. However, for cars used in operating sessions, remember to get the reporting marks on all four sides so your operators can spot the cars correctly on your layout.