In June 1976, aliens landed on a quiet farm in northern Wisconsin. Three of them left their ship and walked a couple hundred yards to the farmhouse. When the farmer answered the door, they were shocked to discover that we didn’t look like aliens. We looked just like them. After a brief discussion, the landing party decided this wouldn’t make a very good press release.
They went back to their ship and left to find a planet with more exotic looking aliens, and have never returned.