“IN MEMORIAL: This plaque commemorates an oak tree that graced this site for forty years. It was felled by the bureaucracy in December 1990 to make space for one more car.”
This is a real plaque at Victoria University of Wellington, New Zealand, located at the carpark between the Wai-te-ata Apartments and the Boyd Wilson clubrooms. I haven’t been able to learn much more, besides that it was put up anonymously, and that rogue plaques are sort of a thing in New Zealand.
I believe this sort of thing should be encouraged worldwide.