My favorite example of this is an exhibit that I saw at the Carnegie Museum of Natural History in Pittsburgh many years ago. There was a diorama of several forest animals, and an interface that shined lights on animals with different features. The "lays eggs" light shined on an assortment of animals including a Rabbit. Rabbits don't lay eggs, they only deliver them to good boys and girls.
We pointed this out to a worker that day. Several years later, we went back to see that the exhibit had not changed. I'm not sure if it's still there today.