"Let's see...ahh! In the past, people used to use the saying "like lemmings off a cliff".Yes, it was once believed, after the release of a Disney documentary made in 1958 called 'White Wilderness', that lemmings would deliberately jump off cliffs and drown in the sea. The movie showed a herd of the little rodents lunging themselves into the deep Arctic Ocean, when really the film crew were forcing them off behind the camera! Even now still people believe and joke about lemmings blindly follow each other to the death, when the myth has been proven false."