Do you know what a 404 page is? It's a page that you are redirected to, whenever you click onto a non-existent link. Some are made to be sad, while others calmly ask you to go back to their home page. If you own a NeoCities website, you can edit it in the "not_found.html" which is located inside your root folder. For example, my 404 page is of Dribble and Spitz, confused where to go as multiple taxis move in varying speeds. The only way to go back is by clicking "Go Back", literally.
Want to see the feeling I get whenever I encounter a 404 accidentally? A thousand-yard stare. That's right; I stare literally into the void, wondering what I have done. In Chrome, there's a feature: you cannot access and delete the 404'd link from your chrome://history. That's what makes me hate 404's.