XY was here

Know that experience? You visit some famous building or monument and you get really angry because someone has left his name or initials, maybe even by using a knife? Why do we actually become angry? Because this guy/girl wants to be part of the eternity of this unique art without having down or produced anything similar? Or because we are jealous? Strolling the rural areas where I grew up close to Cologne I saw an old tree that had always been close to a fence with barbed wire. On a recent visit I noticed that it now has actually incorporated the wire, the fence has become part of the tree...going beyond the borders by simply embracing them. Maybe two ways to get noticed?