In Berlin they put stickers into fresh panels to destroy the graffiti. On the stickers is written "Dieser Zug wurde mutwillig beschmutzt/beschadigt. Wir beseitigen umgehend die Schaden" That means "this train was dirtied/damaged willfully. We abolish the damage immediate." That's why i wrote in German "this End to End will be damaged willfully". 1 day after they did the sticker inside. Perfect !