Rumble in the streets of Leiden

Some graffiti guys thought that their massive work was more important than mine. So they got it from the wall, threw it away and sprayed their work.
I fully understand that work in the open air is risky and can easily be damaged. Fine. But it is something else when “colleagues” get your work from the wall and change it for their work. It became a sort of argument where even local newspaper Leidsch Dagblad paid attention to.