We have a park nearby, where I usually walk the dog. Since there has been planted new bushes and trees, nature needs some time to strengthen. Therefore there was a sign saying “No entrance” - but people (and dogs!) didn’t seem to understand, so the newly plants was tramped to the ground. A few days after, several (like in 50!) signs saying “NO ENTRANCE” was put up. They were handwritten, and this time it worked! No dogs or people did enter! Oh, by the way … “Adgang Forbudt” means “No entrance” in danish :)